Sandy, who said you can't sing "Jingle Bells" in a Jewish nursing home? Whether the original occasion of its creation was Thanksgiving or otherwise, it's clearly, in its original form, a winter song with no religious content. Now, I can see why some of your more straightlaced Jewish religious types might object (for the same reasons that it was not originally deemed suitable for children or taliban), but that's another story. At those nursing homes (if they exist) there're a heck of a lot of traditional Yiddish folksongs that would also be taboo.

Haruo