Thanks to all of you for help.
I had not followed directions from Mr. Cornish. When I released the adjusters properly, the wheels released and I was able to remove the drums. One wheel cylinder leaking, all four pads in bad shape but no evident damage to drums. I guess a result of use and neglect. New brakes, cylinders and components on order.
mike
ps. Have a restored TR4 as well. Little too small for me. Anxious to get TR3 ready.