Can you locate a copy of a recording by Robert Benchley made sometime
in the 1940's or 1950's-it was a comic version of "Uncle Tom's Cabin"

Hello.

Robert Benchley's "Uncle Tom's Cabin" is available on a vinyl LP
called "Comedy's greatest hits: It'll make you laugh."

See this listing at Bowling Green State library:

"Comedy's greatest hits [sound recording] : It'll make you laugh...
Contents...
-- Uncle Tom's cabin (Robert Benchley) -- " 
http://maurice.bgsu.edu/search/tcomedy%27s+greatest/tcomedys+greatest/1%2C2%2C3%2CB/frameset&FF=tcomedys+greatest+hits+itll+make+you+laugh&1%2C1%2C

This record is somewhat rare, but copies do seem to be listed for sale
at several dealers:

Sonicrec.com:
COMEDY ARTISTS; COMEDY`S GREATEST HITS on Longplay Record (LP)
http://www.sonicrec.com/sonicrec.asp?stockno=%20625710

Vinylrevival.com:
89779	VA-Comedy's Greatest Hits:  It'll Make You Laugh
http://www.vinylrevival.com/lists/comedy.shtml

B39107 VA-COMEDY'S GREATEST HITS IT'LL MAKE YOU LAUGH 56.95 
http://www.cd-choice.com/cds-v.htm

Also, the record was recently for sale on eBay.  That auction ended
yesterday, but there were no bids, so you might email the seller and
ask if he or she might consider re-listing the item.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=64&item=2278778960&rd=1&ssPageName=WDVW

------
search strategy:
I searched "Robert Benchley" and "Uncle Tom's Cabin" in my local library catalog.

I have had other researchers several years ago searching for this
record with no results. I am pleased to have such a prompt and
complete answer.