Ed,
This idea of using 7XX/8XX fields for former headings is very
attractive and I look forward to the discussion on the list and in New
Orleans (or wherever the revised discussion paper gets put on the
agenda).
An issue that immediately comes to mind is those cases when the former
heading is also a legitimate AACR2 reference (not the added death
date). In those cases, the 4XX/5XX route with enhanced $w values for
former heading and display would mean a single field could serve both
functions. On the other hand, the 7XX/8XX route could mean that all of
the 1XX/4XX/5XX structure could be an AACR universe and all non-AACR2
stuff would be outside the heading/reference portion of the name
authority record.
Sherman Clarke
New York University Libraries
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