Thanks to all who have replied.  I've already been able to prove that
one of the records I'd saved was *not* for the right person, but two
other ones *were* - these links proved particularly helpful:

https://www.jewishgen.org/databases/USA/PhilaLipshutz.htm
https://www.jewishgen.org/databases/USA/PhilaBlitzstein.htm
(Is there one for the Rosenbaum bank too? I can't find it!) And Moishe
Miller's explanation of how to use the Temple University site was
particularly helpful.

Martha Forsyth
Newton, MA