While the NASA technical report server (NTRS) at ntrs.nasa.gov has lots of reports, literature references form the 1960s might refer to "NASA report NAS8-22222" or similar, and not to a NTRS DocId.
For one report in front of me, it is called
NASA TM X-53049 (a technical memorandum)
and
N64 26979
and on NTRS as
19640017065
For reference, the list of NTRS docs in the thread
List of selected NTRS documents from 1980 or before has only title, NTRS DOCID, and year, but no other document IDs.
And then we sometimes see "NAS8-xxx" and "NAS9-xxx".
And Army and Air Force do other numberings only vaguely related like "SR xxx" or "AD xxxx" numbers.
Therefore, I wondered whether there is
(a) a public database or spreadsheet with NASA reports from the 60s that enables a cross reference to find documents? A spreadsheet like
<NTRS number> , <NASA study number>, <TM number> ,<etc>, <title> ?
which would allow to discover the "newer" NTRS numbers based on NAS or N64 numbers and facilitate further sleuthing?
(b) A document that describes the naming conventions for these 60s NASA memoranda and reports?
(c) Anything else relevant ?