SO, finally, after we had the ship agent contact the airlines, and track the bags through the airport, it was discovered that Ds bag went to Iceland (again) and then on to Helsinki - where it was re-shipped to Tallin. Norwegian was especially helpful and nice about all of this - it was NOT their problem to solve, in any way- and they made sure the bag was AT THE SHIP IN TALLIN!!!
YES! Clean clothes! Warm coat! Proper socks and underwear! The trip was saved.
It poured down rain in Tallin, and my faithful old boots finally gave out in the downpour. We happened to walk right by an outlet mall, which had shoe shops- and I found a good comfortable parir of boots, that got me home and back!
Thus fortified, we explored the old city of Tallin from front to back: