100 Main Entry - Personal Name (NR) (Variable Data Field)
Field 100 contains a personal name used as a main entry in a bibliographic record. Main entry is assigned according to various cataloging rules (such as AACR 2), usually to the person chiefly responsible for creation of the intellectual or artistic content of a work.
The National level record requirement for this field is Mandatory if applicable.
Field 100 is NOT repeatable.
Guidelines for applying content designators:
The 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).
For indicator and subfield code definitions and examples, National-level (NLR) and Minimal-level (MLR) record requirements, and designator repeatability, see table below:
Position |
Description |
NLR |
MLR |
Repeatability |
Field 100 |
Main Entry - Personal Name |
A |
A |
NR |
Indicator: |
|
|
|
|
First |
M |
|
|
|
0 |
A |
|
|
|
1 |
A |
|
|
|
3 |
A |
|
|
|
|
|
|
|
|
Second |
Undefined; contains a blank |
M |
|
|
|
|
|
|
|
Subfield code: |
|
|
|
|
M |
M |
NR |
||
$b |
A |
A |
NR |
|
$c |
A |
A |
R |
|
A |
A |
NR |
||
O |
O |
R |
||
$f |
A |
O |
NR |
|
$g |
A |
O |
R |
|
$j |
O |
O |
R |
|
$k |
A |
O |
R |
|
$l |
A |
O |
NR |
|
$n |
A |
O |
R |
|
$p |
A |
O |
R |
|
A |
A |
NR |
||
$t |
A |
O |
NR |
|
$u |
O |
O |
NR |
|
$0 |
O |
O |
R |
|
$1 |
|
|
R |
|
$2 |
|
|
NR |
|
$4 |
O |
A |
R |
|
$6 |
A |
A |
NR |
|
$8 |
O |
O |
R |
See: Examples for this field.
Ambiguous headings (what is considered a "personal" name)
Initial articles (includes information on diacritics or special characters)
First indicator - Type of personal name entry element
Values 1 - Single surname [redefined]
2 - Multiple surname [obsolete]
In 1996, the first indicator value 2 (Multiple surname) was made obsolete. Value 1 (Single surname) was redefined as Surname to be used for headings with either single or multiple surnames.
Second indicator - Main entry/subject relationship (BK MU SE) [obsolete]: The use of the second indicator in field 100 to indicate the main entry/subject relationship was made obsolete in 1990. The values were: 0 (Main entry/subject relationship irrelevant) and 1 (Main entry is subject).
Subfield $g - Miscellaneous information [changed, 2014]: In 2014, subfield $g was made repeatable.
Subfield $j - Attribution qualifier: In 2000, subfield $j was defined for attribution for names when the responsibility is unknown, uncertain, fictitious, or pseudonymous.
Subfields $n - Number of part/section of a work [defined]
$p - Name of part/section of a work [redefined]
In 1979, subfield $n was defined for numbered parts/sections and subfield $p (Part) was redefined to include only named parts/sections. Prior to that change, both the number and the name of a part were contained in one $p subfield.
Subfield $0 - Authority record control number [new, 2007]
Subfield $0 - Authority record control number [redefined, 2010]
Subfield $1 - Real World Object URI [new, 2017]
Subfield $2 - Source of heading or term [new, 2019]
Subfield $4 - Relator code [renamed, 2017] [redescribed, 2017]: Subfield $4 was renamed to Relationship and redescribed to allow for the recording of relationship URIs in addition to MARC and non-MARC codes.
Related MARC fields or documents:
X00 Personal Names - General Information
RDA in MARC Bibliographic Data
See also: