These are all ancient motors – they are monetarily worthless and more than anything, they pose a serious threat to our shared environment – our own Earth Mother.
My earnest suggestion is that you immediately send them all to a board member for environmentally conscious disassembly and recycling.
If you are going to continue rescuing old orphaned outboards, I highly recommend you get Peter Hunn’s "The Old Outboard Book", third addition. A wealth of information, it will answer 90% of your questions.