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OCLC

LC Authorities

Library of Congress authority records

The Library of Congress and NACO (Name Authority Cooperative Program) libraries create and maintain the authority records. Records are stored and displayed in the MARC authorities format. When working with WorldCat bibliographic records, you can search the Library of Congress authority records to determine the correct forms for names of persons, organizations, conferences, or titles associated with the resource you are describing, or when adding subject headings to the WorldCat bibliographic record, to determine established headings.

Types of headings

The OCLC authority file contains authority records for the following types of headings:

  • Personal names
  • Corporate names
  • Conference names
  • Geographic names
  • Uniform titles
  • Series titles
  • Genre headings
  • Subject headings (topical terms as well as names and titles with subject subdivisions)
  • Children's subject headings
  • Subdivision headings

Controllable fields

Only the following fields permit the control of these headings using a Library of Congress authority record:

  • 100, 110, 111, 130, 700, 710, 711, 730, 810, 811, 830 (where $b = “blank” or eng)
  • 600, 610, 611, 630, 650, 651, second indicator 0
  • 655 second indicator 7, $2 lcgft

Search for an LC authority record

When working with WorldCat bibliographic records, you can search the Library of Congress authority records to determine the correct forms for names of persons, organizations, conferences, or titles associated with the resource you are describing, or when adding subject headings to the WorldCat bibliographic record, to determine established headings.

  1. From the Data Type drop-down list, select Authorities.
  2. From the Scope drop-down list, select LC Authorities.
  3. From the Index drop-down list, select an index. For a list of all indexes, see Record Manager: Authorities Guide.
  4. In the Term(s) text field, enter your search terms. The text field will expand to fit your search terms, if needed.
  5. Click Search. The Search results page appears with the matching authorities results listed in a table with this information:
    • Name - The name of the authority and its associated See (4xx) and See Also (5xx) references.
       Note: See and See Also references are displayed as links if they lead to an authority record. Click the link to open the authority record in the MARC editor.
    • Field - The field in which the authority appears.
    • Description - Lists information about personal, corporate/conference, or geographic names.
  6. Click the name of the matching item to view the authority file record.

Apply Library of Congress authority heading information to a MARC 21 field

After you control a heading and replace the record in WorldCat, Record Manager automatically updates the heading whenever the linked authority record changes.

  1. Open the record to which you wish to apply Library of Congress authority heading information.
  2. In the MARC 21 editor, click the field immediately above the location where you want to add the controlled field and then click the Add Field icon.
  3. In the Basic search panel, select LC Authorities from the Scope drop-down list.
  4. From the Index drop-down list, select an index.
  5. Based on the index you selected, enter your search terms. The text field will expand to fit your search terms, if needed.
  6. Click Search. The search results will be displayed in a table with the following columns:
    • Name - The name of the authority and its associated See (4xx) and See Also (5xx) references.
       Note: See and See Also references are displayed as links if they lead to an authority record. Click the link to open the authority record in the MARC editor.
    • Field - The field in which the authority appears.
    • Description - Lists information about the personal, corporate/conference, or geographic name.
  7. Click the Name of the matching authority to view the authority file record.
  8. Click Copy Link Data.
  9. Return to the field you created in the MARC 21 editor.
  10. Select Apply Authority Link from the Edit drop-down menu. The Library of Congress authority header information is added to the field. The header, which is from the bibliographic record, is inserted as a hyperlink and $0 is also present.

Auto-suggest LC Names

LC Authorities auto-suggest

When working in the MARC 21 editor, auto-suggestions for field-appropriate LC Names to start with the first keystroke in new and existing records whose

  • 040 field subfield $b is blank or identified as English ($b eng).
  • 100, 110, 111, 130, 700, 710, 711, 730, 800, 810, 811, and/or 830 field is blank.
  • Auto-suggested headings are automatically controlled when selected. If you are editing an existing field, you must first follow the procedure to remove a link from a controlled heading in a MARC 21 record.

Disable auto-suggest for LC Names

  1. From the MARC 21 editor, click the User Preferences button (User Preferences button).
  2. Click the General tab in the User Preferences dialog.
  3. Deselect Auto-Suggest LC Names under Authorities.