saraw82,
Welcome to the QB.
Both machines will take Class 15 bobbins and common 15x1 needles.
The top machine uses Low Shank feet and the bottom machine uses High Shank feet. Neither are Singer clones nor are they industrials. Nor do they use industrial feet. Some High Shank industrial feet will fit on the bottom machine, but the feet normally used are not industrials.
You can get bobbins, needles, and feet for both machines at Sew-Classic {
http://www.shop.sew-classic.com/ }.
Sew-Classic also has tutorials on how to tell what feet you have on your machines. Plus they have wiring set ups to replace the old worn out wiring.
I'm not affiliated with Sew-Classic, just a very satisfied customer.
Joe