Ok, so the pump won't be coming out, until there is absolutely no other option but to unstack the dryer and tilt the washer back ten inches...Oy!
By removing the drain trap, I can touch the drain pump fins from both directions. I cannot spin the fins. Is my conjecture that something like a long piece of yarn has gotten this far in the drain system sound?
Or maybe I should try to remove the hose from the tub to the back of the drain trap from the top end, by the tub, to check the whole run of that tube?
Bryan, buddy, I'm gonna give you an "A" for awesome on this one. Try as i might, I couldn't figure out how to remove the motor, though it looked clearly like ti should be removable. So with lots of elbow grease and finesse, it turned. And voila! out comes a loose elastic bra strap! Thank you, sir!