Had a reply from the Williamstown Library today re obituary for Jennie Beveridge Yeoman as follows
Unfortunately, we are only 15 years old and have been posting obituaries since about 2000.
If she was living in Williamstown, the obituary may have been published in the North Adams Transcript or The Berkshire Eagle of Pittsfield. The Transcript was recently closed and merged with the Eagle. They do not have anything online past about 2000 either, but you might come across an obituary through one of the online genealogy or old newspaper sites.
Another possibility is the North Adams Public Library or the Milne Public Library in Williamstown. I know they offer some genealogy help in-house but not how much long distance help they do.
Good luck in your search,