following pdf file contains all of the resized Project Blue Book
documents below and is now housed on the NICAP site for security
The original over-sized docs from the footnotes.com site are listed below:
A computer search on the BB Archive site using "March AFB, 1951" turned up 10 files in GROUP 1. The "Group 1 or 1604" file had 45 documents, varying from very good, to readable, to nonreadable. Group 2 had only a sighting listing at MAXW-PBB2-273 which is the last item shown below.
Frames 1604-1649 .