I have been searching, unsuccessfully for a DVD or VHS on the life of
Thorton Wilder.  I found one site at a college in California, but they
will only loan to faculty (The video is from the American Literature
on Video Series--25 minutes, black and white -- 1967.)  How do I find
this video or DVD?

Greetings, a search on "american literature on video" found it:

ncteamericancollection.org  

Hit the T and scroll down the Thorton.  Costs $ 89.95

I did not check any other sites that came up.

IS ga "our town"?

Good luck!