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I would simply move any useful 670s from the “undifferentiated” record to the one with the date and report that record for cancellation. No need to include a 400 from the form without a date. It’s just a practical solution in this case. Adam Schiff From: Program for Cooperative Cataloging [mailto:[log in to unmask]] On Behalf Of Michael Borries Sent: Tuesday, August 08, 2017 2:15 PM To: [log in to unmask] Subject: Re: Tom Jackson Well, if I can’t give a 400 field for an undated Tom Jackson, and I can’t give a 500 field for an undated Tom Jackson, what do I do? While it is true that there are *bib* records with undated Tom Jacksons who are not this one, the authority record was unique as it stood. It only referred to one Tom Jackson, the one born in 1932. Michael S. Borries Cataloger, City University of New York 151 East 25th Street, 5th Floor New York, NY 10010 Phone: (646) 312-1687 Email: [log in to unmask]<mailto:[log in to unmask]> From: Program for Cooperative Cataloging [mailto:[log in to unmask]] On Behalf Of Stephen Hearn Sent: Tuesday, August 08, 2017 5:07 PM To: [log in to unmask]<mailto:[log in to unmask]> Subject: Re: [PCCLIST] Tom Jackson Agreeing with Adam's comments-- RDA Appendix K.1 does allow for formulating new subfield $i texts, but the LC-PCC PS does not, at least when it comes to PCC records. Also, the MARC Authority 5XX fields are for related established headings. NACO says that each 5XX should match to an established 1XX. So I don't think a 500 field could work in this case, unless the undated heading is established for yet another Tom Jackson. And even then, there'd be ambiguity in such a reference, which would be referring to both the 100 heading for another person and the former heading for the TJ born in 1932. That seems too ambivalent for a subfield $i. Stephen On Tue, Aug 8, 2017 at 3:48 PM, Michael Borries <[log in to unmask]<mailto:[log in to unmask]>> wrote: Would a 500 field with the text “ǂi Earlier form of heading: ǂa Jackson, Tom ǂw r” work? Is it allowed? Michael S. Borries Cataloger, City University of New York 151 East 25th Street, 5th Floor New York, NY 10010 Phone: (646) 312-1687<tel:(646)%20312-1687> Email: [log in to unmask]<mailto:[log in to unmask]> From: Program for Cooperative Cataloging [mailto:[log in to unmask]<mailto:[log in to unmask]>] On Behalf Of Stephen Hearn Sent: Tuesday, August 08, 2017 3:26 PM To: [log in to unmask]<mailto:[log in to unmask]> Subject: Re: [PCCLIST] Tom Jackson If OCLC included a substantial number of "Jackson, Tom" headings controlled by the n 50027953 authority, one could make a case for changing its 100 to "Jackson, Tom, 1932-" (with the related name/title NARs) and deleting the other authority to resolve the conflicts and take advantage of OCLC's automated updating functionality. But I haven't found any of the many relevant bib records controlled by the undated authority. On the other hand, all the OCLC bib records for "Jackson, Tom, 1932-" are controlled by their authority, so in terms of dynamic relation to the bib file, that authority is more important. What I wound not do is add "400 1 $a Jackson, Tom $w nne" to the more recent authority. In our Alma catalog, that would have the effect of changing all our "Jackson, Tom" headings to "Jackson, Tom, 1932-", which we would prefer not to see happen. Likwewise, eliminating the authority for an undated heading in a case like this would be better for catalogs like ours. Changing the existing heading by adding the date would add the date willy-nilly to all our "Jackson, Tom" authors, since Alma automatically controls them (where OCLC does not.) Stephen On Tue, Aug 8, 2017 at 12:31 PM, Robert Maxwell <[log in to unmask]<mailto:[log in to unmask]>> wrote: I agree with you. Even though n 50027953 isn't coded as undifferentiated it might as well be since you have discovered that in the bib file the access point has been used to represent more than one person. My opinion only, of course. If you do choose to keep nb2011032496 and have n 50027953 canceled, don't forget that there are some related NARs that will also need revision. Bob Robert L. Maxwell Ancient Languages and Special Collections Cataloger 6728 Harold B. Lee Library Brigham Young University Provo, UT 84602 (801)422-5568<tel:(801)%20422-5568> "We should set an example for all the world, rather than confine ourselves to the course which has been heretofore pursued"--Eliza R. Snow, 1842. ________________________________ From: Program for Cooperative Cataloging <[log in to unmask]<mailto:[log in to unmask]>> on behalf of Michael Borries <[log in to unmask]<mailto:[log in to unmask]>> Sent: Tuesday, August 8, 2017 10:41 AM To: [log in to unmask]<mailto:[log in to unmask]> Subject: Tom Jackson This seems to be my week for finding duplicates. NAR n 50027953 is for Jackson, Tom, no dates, but still unique. NAR nb2011032496 is for Jackson, Tom, 1932-. These individuals are the same person, having written the same book, with a different title in Britain. There seem to be a great many records with the heading Jackson, Tom [no dates], but some of these seem not to be the Tom Jackson who writes books on how to get a job. But there seem to be far fewer records with the heading that includes the date. Still, because there are bib records which have headings with no date for a different Tom Jackson, I think it would be better to use the heading with the date as the authorized form, even though the form without the date was established earlier. What is the opinion of this forum? Michael S. Borries Cataloger, City University of New York 151 East 25th Street, 5th Floor New York, NY 10010 Phone: (646) 312-1687<tel:(646)%20312-1687> Email: [log in to unmask]<mailto:[log in to unmask]> -- Stephen Hearn, Metadata Strategist Data Management & Access, University Libraries University of Minnesota 170A Wilson Library (office) 160 Wilson Library (mail) 309 19th Avenue South Minneapolis, MN 55455 Ph: 612-625-2328<tel:(612)%20625-2328> Fx: 612-625-3428<tel:(612)%20625-3428> ORCID: 0000-0002-3590-1242 -- Stephen Hearn, Metadata Strategist Data Management & Access, University Libraries University of Minnesota 170A Wilson Library (office) 160 Wilson Library (mail) 309 19th Avenue South Minneapolis, MN 55455 Ph: 612-625-2328 Fx: 612-625-3428 ORCID: 0000-0002-3590-1242