|First Indicator||Second Indicator|
|Type of personal name entry element
0 - Forename
1 - Surname
3 - Family name
|100 - Undefined
# - Undefined
600 - Thesaurus
0 - Library of Congress Subject Headings
1 - LC subject headings for children's literature
2 - Medical Subject Headings
3 - National Agricultural Library subject authority file
4 - Source not specified
5 - Canadian Subject Headings
6 - Répertoire de vedettes-matière
7 - Source specified in subfield $2
700 - Type of added entry
# - No information provided
2 - Analytical entry
800 - Undefined
# - Undefined
Name and title portions
Subject subdivision portion
Content designators identify the subelements occurring in personal name fields constructed according to generally accepted cataloging and thesaurus-building rules (e.g., Anglo-American Cataloguing Rules (AACR 2), Library of Congress Subject Headings (LCSH)). Personal names used in phrase subject headings (e.g., John, the Baptist, Saint, in the Koran) are contained in field 650 (Subject Added Entry-Topical Term).
Guidelines for applying all content designators except the second indicator position are given in this section. A field-specific list of content designators and guidelines for applying the second indicator position are provided under the description for each specific X00 field.
First Indicator - Type of personal name entry element
Value that identifies the form of the entry element of the field. The values distinguish among forenames, surnames, and family names used as the entry element.
Heading begins with a forename or is a name consisting of words, phrases, initials, separate letters, or numerals that are formatted in direct order.
|100||0#$aJohn,$cthe Baptist, Saint.|
|100||0#$aA. de O.|
|100||0#$aAuthor of The diary of a physician,$d1807-1877.
[Phrase name is formatted in direct order.]
|700||0#$aR. M. B.
[Initials representing name are in direct order.]
|100||0#$aClaude,$cd'Abbeville, père,$dd. 1632.|
[Uncertain whether name is a forename or surname]
|100||0#$aFarmer, (and once a grand juror) of Grange
[Phrase name in direct order]
Heading is a surname formatted in inverted order (surname, forename) or a name without forename(s) which is known to be a surname. If there is uncertainty that a name without forename(s) is a surname, the first indicator position contains value 0. Phrases, when formulated with inversion and an entry element similar to a surname are treated as a surname.
[Name without forename known to be a surname]
|100||1#$aBlackbeard, Author of,$d1777-1852.
[Phrase name in inverted order]
|100||1#$aLe Conte, John Eatton,$d1784-1860.|
|100||1#$aEl-Abiad, Ahmed H.,$d1926-|
|100||1#$aBen Omar, Saidali Bacar,$d1931-|
|700||1#$aVérez Peraza, Elena,$d1919-|
|100||1#$aSaint-Germain, Herve de.|
|700||1#$aSalamín C., Marcel A.|
|100||1#$aEl Saffar, Ruth S.,$d1941-|
|100||1#$aLover's opera, Author of The,$d1766-|
Heading is the name of a family, clan, dynasty, house, or other such group. The name may be constructed in direct or inverted order.
|600||30$aNorfolk, Dukes of.|
Second indicator position is unique to the function of the personal name field. It is described under the following fields: 100 (Main Entry-Personal Name); 600 (Subject Added Entry-Personal Name); 700 (Added Entry-Personal Name); and 800 (Series Added Entry-Personal Name).
$a - Personal name
Name may be a surname and/or forename; letters, initials, abbreviations, phrases, or numbers used in place of a name; or a family name. A parenthetical qualifying term associated with the name is contained in subfield $c, and a fuller form of name added as a qualifier is contained in subfield $q.
|100||1#$aWilliams, Martha E.|
|700||1#$aIbn al-Mu`tazz, `Abd Allah,$d861-908.|
$b - Numeration
Roman numeral or a roman numeral and a subsequent part of a forename. It is used only in a forename heading (first indicator, value 0).
|100||0#$aJohn$bII Comnenus,$cEmperor of the East,$d1088-1143.|
$c - Titles and words associated with a name
Includes qualifying information such as:
Fuller forms of names given in parentheses are given in subfield $q.
|100||1#$aRussell, John,$cmap maker.|
|100||1#$aMasséna, André,$cprince d'Essling,$d1758-1817.|
|100||1#$aByron, George Gordon Byron,$cBaron,$d1788-1824.|
|100||1#$aBeethoven, Ludwig van,$d1770-1827$c(Spirit)|
|100||1#$aMunro, Jean,$cPh. D.|
If the heading is a surname followed directly by a prefix without intervening forenames or forename initials, the prefix is contained in subfield $c to prevent its being processed as a forename in searching and sorting.
Multiple adjacent titles or words associated with a name are contained in a single subfield $c. Subfield $c is repeated only when words associated with a name are separated by subelements contained in other subfields.
|700||0#$aCharles Edward,$cPrince, grandson of James II, King of England,$d1720-1788.|
|100||0#$aBlack Foot,$cChief,$dd. 1877$c(Spirit)
[Subfield $c is repeated due to intervening subelements.]
$d - Dates associated with a name
Dates of birth, death, or flourishing or any other date used with a name. A qualifier used with the date (e.g., b., d., ca., fl., ?, cent.) is also contained in subfield $d.
|100||1#$aRodgers, Martha Lucile,$d1947-|
|100||1#$aLuckombe, Philip,$dd. 1803.|
|100||1#$aMalalas, John,$dca. 491-ca. 578.|
|100||1#$aLevi, James,$dfl. 1706-1739.|
|100||1#$aJoannes Aegidius, Zamorensis,$d1240 or 41-ca. 1316.|
|100||0#$aPiri Reis,$dd. 1554?|
|100||1#$aSmith, John,$d1882 Aug. 5-|
$e - Relator term
Designation of function that describes the relationship between a name and a work, e.g., ed., comp., ill., tr., collector, joint author.
Relator codes, which also specify the relationship of a person to a work, are contained in subfield $4.
$f - Date of a work
Date of publication used with a title of a work in a name/title heading.
|700||12$aHills, John,$csurveyor.$tSketch of Allens Town, June 1778.$f1976.|
Dates added parenthetically to a title to distinguish between identical titles entered under the same name are not separately subfield coded. Exception: For music, see subfield $n.
$g - Miscellaneous information
Data element that is not more appropriately contained in another defined subfield. This subfield is defined for consistency in the heading fields. Subfield $g is unlikely to be used in an X00 field.
$h - Medium [600/700/800]
Media qualifier used with a title of a work in a name/title field.
$i - Relationship information 
Designation of a relationship between the resource described in the 7XX field and the resource described in the 1XX/245 of the record. This may be an uncontrolled textual phrase or a controlled textual value from a list of relationships between bibliographic resources.
|245||00$aTriumph :$bfor concert band /$cby Michael Tippett.|
|700||1#$iParaphrase of (work):$aTippett, Michael,$d1905-1998.$tMask of time.|
|Triumph : for concert band / by Michael Tippett.|
|Paraphrase of: Tippett, Michael, 1905-1998. Mask of time.|
|245||00$aAlice in Wonderland, or, What's a nice kid like you doing in a place like this? /$$cHanna-Barbera Productions.|
|700||1#$iParody of (work):$aCarroll, Lewis,$d1832-1898.$tAlice's adventures in Wonderland.|
|Alice in Wonderland, or, What's a nice kid like you doing in a place like this? / Hanna-Barbera Productions.|
|Parody of: Carroll, Lewis, 1832-1898. Alice's adventures in Wonderland.|
$j - Attribution qualifier
Attribution information for names when the responsibility is unknown, uncertain, fictitious, or pseudonymous. Qualifiers should be used that follow the name of a known artist for the work.
|100||0#$aE.S.,$cMeister,$d15th cent.,$jFollower of|
|100||1#$aReynolds, Joshua,$cSir,$d1723-1792,$jPupil of|
$k - Form subheading
Form subheading that occurs in the title portion of an X00 field. Form subheadings used with personal names include Selections.
[The word Selections is used as a uniform title and is contained in subfield $t.]
$l - Language of a work
Name of a language(s) (or a term representing the language, e.g., Polyglot) of a work in a name/title field.
$m - Medium of performance for music [600/700/800]
Term(s) designating the medium of performance used in a uniform title for a work in a name/title field.
|700||1#$aBeethoven, Ludwig van,$d1770-1827.$tSonatas,$mpiano.$kSelections.|
|700||12$aDebussy, Claude,$d1862-1918.$tSonatas,$mflute, viola, harp.$f1986.|
|700||1#$aRies, Ferdinand,$d1784-1838.$tOctets,$mpiano, winds, strings,$nop. 128,$rA& major.|
Multiple adjacent elements in a single medium statement are contained in a single subfield $m. Subfield $m is repeated only when medium of performance statements are separated by subelements contained in other subfields.
|700||1#$aArne, Thomas Augustine,$d1710-1778.$tConcertos,$mkeyboard instrument, orchestra.$nNo. 3.$pCon Spirito,$mkeyboard instrument.
[Subfield $m is repeated due to intervening subelements.]
If the uniform title includes as part of the medium the abbreviation “acc.” or “unacc.,” the abbreviation is recorded in subfield $m. The abbreviation “unacc.” is recorded in subfield $t when it is not an addition to a statement of medium. When a phrase such as “pianos (2),” “4 hands,” etc., follows a collective uniform title for a specific medium of performance, it is included in subfield $t.
$n - Number of part/section of a work
Number designation for a part/section of a work used with a title in a name/title field.
In music uniform titles, the serial, opus, or thematic index number, or a date used to distinguish one work from another, is contained in subfield $n.
Multiple alternative numberings (often separated by a comma) are contained in a single subfield $n. Multiple numberings that are hierarchical (often separated by a period) are contained in separate occurrences of subfield $n.
|700||12$aLucretius Carus, Titus.$tDe rerum natura.$nLiber 4.$f1987.|
|700||1#$aTolkien, J. R. R.$q(John Roland Reuel),$d1892-1973.$tLord of the rings.$n2,$pTwo towers.
[Part/section is both numbered and named.]
|700||12$aMendelssohn-Bartholdy, Felix,$d1809-1847.$tQuartets,$mpiano, strings,$nno.2, op. 2,$rF minor.$f1972.|
|700||12$aSchubert, Franz,$d1797-1828.$tImpromptus,$mpiano,$nD. 935.$nNo. 2.$f1985.|
$o - Arranged statement for music [600/700/800]
Abbreviation arr. used in a uniform title for a work in a name/title field.
|700||12$aMozart, Wolfgang Amadeus,$d1756-1791.$tZauberflöte.$kSelections;$oarr.$f1985.|
$p - Name of part/section of a work
Name designation of a part/section of a work in a name/title field.
|700||12$aHindemith, Paul,$d1895-1963.$tNobilissima visione.$pMeditation;$oarr.$f1977.|
|700||12$aPraetorius, Hieronymus,$d1560-1629.$tOpus musicum.$pCantiones sacrae.$pO vos omnes.$f1974.|
|700||12$aDebussy, Claude,$d1862-1918.$tPreludes,$mpiano,$nbook 1.$pCollines d'Anacapri.$f1980.|
$q - Fuller form of name
More complete form of part of the name that is in subfield $a.
|100||0#$aH. D.$q(Hilda Doolittle),$d1886-1961.|
|100||1#$aGresham, G. A.$q(Geoffrey Austin)|
|100||1#$aSmith, Elizabeth$q(Ann Elizabeth)|
[Thai name, given in parentheses as part of entry element.]
$r - Key for music [600/700/800]
Statement of key in which the music is written used in a uniform title for a work in a name/title field.
|700||12$aBeethoven, Ludwig van,$d1770-1827.$tSonatas,$mpiano,$nno. 13, op. 27, no. 1,$rE major.$f1986.|
$s - Version [600/700/800]
Version, edition, etc., information used with a title of a work in a name/title field.
|700||1#$aHarrison, Tinsley Randolph,$d1900-$tPrinciples of internal medicine.$s9th ed.|
$t - Title of a work
Uniform title, a title page title of a work, or a series title used in a name/title field.
|700||12$aCendrars, Blaise, 1887-1961.$tSelections.$f1987.|
|700||12$aKelly, Michael,$d1762-1826.$tLove laughs at locksmiths.$lEnglish.$f1979.|
|700||12$aPoulenc, Francis,$d1899-1963.$tPiano music, pianos (2)|
$u - Affiliation
Affiliation or address of the name.
|100||1#$aBrown, B. F.$uChemistry Dept., American University.|
$v - Volume/sequential designation 
Volume number or other sequential designation used in conjunction with a series added entry in field 800.
|800||1#$aFernando, A. Denis N.$tResource maps of Sri Lanka ;$vpt. 2.|
$v - Form subdivision 
Form subdivision that designates a specific kind or genre of material as defined by the thesaurus being used. Subfield $v is appropriate only when a form subject subdivision is added to a personal or family name to form an extended subject heading. Subfield $v is used for form terms when they function as indicated above. Subfield $x may be used if the terms function as general subdivisions. A form subdivision in subfield $v is generally the last subfield in the field. The subfield may be repeated if more than one form subdivision is used.
|600||00$aGautama Buddha$vEarly works to 1800.|
$w - Bibliographic record control number 
$x - International Standard Serial Number [700/800]
ISSN for a serial title given in the title portion of a name/title field. The ISSN is an agency-assigned data element. ISSNs are assigned to serial publications by national centers under the auspices of the ISSN Network.
$x - General subdivision 
Subject subdivision that is not more appropriately contained in subfield $v (Form subdivision), subfield $y (Chronological subdivision), or subfield $z (Geographic subdivision). Subfield $x is appropriate only when a general subdivision topical is added to a name or a name/title.
|600||10$aBrunhoff, Jean de,$d1899-1937$xCharacters$xBabar.|
|600||00$aNapoleon$bI,$cEmperor of the French,$d1769-1821$xAssassination attempt, 1800 (December 24)|
$y - Chronological subdivision 
Subject subdivision that represents a period of time. Subfield $y is appropriate only when a chronological subject subdivision is added to a name or name/title.
|600||10$aShakespeare, William,$d1564-1616$xCriticism and interpretation$xHistory$y18th century.|
|600||10$aReagan, Ronald$xAssassination attempt, 1981.
[Date is part of the general subdivision.]
$z - Geographic subdivision 
Appropriate only when a geographic subject subdivision is added to a name or name/title.
|600||00$aFrederick$bII,$cHoly Roman Emperor,$d1194-1250$xHomes and haunts$zItaly.|
|600||10$aFord, Gerald R.,$d1913-$xMuseums$zMichigan.|
$0 - Authority record control number or standard number
$2 - Source of heading or term 
MARC code that identifies the source list from which the heading in a 600 subject added entry field was assigned. It is used only when the second indicator position contains value 7 (Source specified in subfield $2). Code from: Subject Heading and Term Source Codes.
|600||17$aNixon, Richard M.,$d1913-$2henn|
$3 - Materials specified [600/700/800]
Part of the described materials to which the field applies.
$4 - Relator code
MARC code that specifies the relationship between a name and a work. More than one relator code may be used if the person has more than one function. Code from: MARC Code List for Relators. The code is given after the name portion in name/title fields.
Relator terms, which also specify the relationship of a person to a work, are contained in subfield $e.
$5 - Institution to which field applies [700/800]
$6 - Linkage
$7 - Control subfield 
Up to two character positions (designated 0 and 1) that indicate special characteristics of the linked entry. Because the definitions of the codes in subfield $7 are dependent on the character position in which they occur, the coding of any character position mandates that each preceding character position contains a code or the fill character (|); succeeding character positions need not be used.
Code indicating the type of record for the related item. The code is the same as the code in Leader/06 (Type of record) in the record for the related item.
|d||Manuscript notated music|
|f||Manuscript cartographic material|
|i||Nonmusical sound recording|
|j||Musical sound recording|
|k||Two-dimensional nonprojectable graphic|
|r||Three-dimensional artifact or naturally occurring object|
|t||Manuscript language material|
Code indicating the bibliographic level of the related item. The code is the same as that in Leader/07 (Bibliographic level) in the record for the related item.
|a||Monographic component part|
|b||Serial component part|
$8 - Field link and sequence number
Ambiguous Headings - See Appendix E: Ambiguous Headings.
Punctuation - Punctuation of the subelements of a heading is generally dictated by descriptive cataloging or subject heading system/thesaurus rules. These input conventions clarify MARC punctuation practices. Fields 100, 600, 700, and 800 end with a mark of punctuation or a closing parenthesis. If the final subfields are subfield $0, $2, $3, $4, or $5, the mark of punctuation or closing parenthesis precedes those subfields.
|600||10$aCapote, Truman,$d1924-$xCriticism and interpretation.|
|700||0#$aThomas$c(Anglo-Norman poet).$tRoman de Tristan.$lEnglish.|
Name portion of a name/title heading ends with a mark of punctuation. The mark of punctuation is placed inside a closing quotation mark. A name or title portion followed by a subject subdivision does not end with a mark of punctuation unless the name or title portion ends with an abbreviation, initial/letter, or open date.
|600||10$aSavos'kin, A.N.$q(Anatolii Nikolaevich)$vBibliography.|
|600||10$aTatlin, Vladimir Evgrafovich,$d1885-1953.$tMonument to the Third International$xCopying.|
|600||00$aAlexander,$cthe Great,$d356-323 B.C.$xArt.|
Spacing - Adjacent personal name initials/letters or an abbreviation for a name and an adjacent name or initial/letter are separated by one space.
|100||1#$aHyatt, J. B.|
|100||1#$aFlam, F. A.$q(Floyd A.)|
|700||1#$aEnschedé, Ch. J.|
|100||1#$aGorbanev, R. V.$q(Rostislav Vasil'evich)|
No spaces are used in initials/letters that do not represent personal names.
|100||1#$aSharma, S. K.,$cM.P.H.|
Initial Articles - Initial articles (e.g., La) occurring at the beginning of name heading fields are sometimes omitted (except when the intent is to file on the article). Initial articles occurring at the beginning of the title and/or part portion of a name/title added entry (i.e., 600, 700, 800) may also be omitted. Any diacritics and/or special characters occurring at the beginning of fields are retained. Note that such characters are usually ignored for purposes of sorting or filing.
In 2014, subfield $g was made repeatable.
In 1979, subfield $n was defined for numbers of parts/sections and subfield $p (Part) was redefined to include only names of parts/sections. Prior to that change, both the number and the name of a part were contained in one subfield $p.