If Ron is right, and those are actually ROY ROGERS bows, I would not even think about selling them if you have any collecting interest at all. If you do sell them. Get a bundle for them. If hoyt has any record keeping like Black Widow does, you should be able to call them with the serial numbers and find out who they were sold to.
I Verified a Black Widow X99 with the name "GENE THORPE" on it as having been sold to JANSSENS ARCHERY SHOP in New Orleans. That is where we all got our bows in the '60's. With that confirmation, I bought the bow as a keepsake in memory of an old departed friend.
Do your homework, it is worth the effort.