Hi again and thanks for all the input and offers of help---I think I'll take ya'll up on them starting now with this Domestic.
I plugged her up and found that the motor hums but the wheel doesn't engage. It will move the needle slightly if I manually turn the wheel. I'm more than intimidated to start taking anything apart, but I also noticed that the power cord is very worn where it plugs into the motor so it will have to be replaced soon if I get it working and can use it.
I also opened the door for the bobbin and found 2 baggies with lots of weird looking attachment, a few bobbins and needles.
I can't find any tag giving a model, but a metal tag on the motor which reads Domestic Sewing Machine company Cleveland OHio and the number 9100-1. I searched google and found some utube videos of a 153 series that looks exactly like this one (even the crinkle brown paint) so I suspect that is indeed what it is. It is fairly lightweight outside of the carrying case.
Can someone suggest what might be the next step to see if she'll "unstick"?