Cathy,
Nice collection, usually the needles and shuttles come after the sewing machine. Have you tried these National / Eldredge badged machines for your missing Boye 22 ---Arlington, Belvidere, Columbia, Empress, House & Farm, Idalia, Majestic, Matchless, Old Homestead, Pride, and Pritzlaff?
I picked up a pack of National / Eldredge long bobbins and they were marked National "short". Didn't realize there was a long before then. I got the short long bobbins :< but they appear to be more common.
Jon