Uncovered Betsy today and fixed my tail lights, also gave her a nice bath...gonna wax her up tomorrow.
Seems the tail light sockets on this car expect the side pins to be at the same level, not offset. The reason they weren't working, the passenger side bulb had popped out and was in the bottom of the tail light housing. Try as I might, I couldn't get one of the newer bulbs to twist in. Then I checked the old bulb and saw the lower side pin had been ground down smooth, and it appeared the indents for the bulb pin on the sockets were identical in length, suggesting that perhaps older 1154 bulbs did not have the pins offset?
At any rate, both brake and blinker lights working in the rear now...next up, tracing down my wiper problem.
Thanks for all your help guys!!!!