biographical info request

[Andy Rubin <andyrubin...>]

I'm looking for some biographical information on the following people:
Alexander Olshanetsky and Jacob Jacobs (composer and lyricist,
respectively, for "Mayn Shtetele Belz"), and Abe Schwartz and Hyman Prizant
(composer and lyricist for "Di Grine Kuzine"). Any information (dates,
where they lived, what projects they were generally involved with, what
other tunes they wrote, etc.) would be helpful, as well as references to
where such information might be found.

Most appreciatively,

Andy Rubin
Sacramento, CA