Thank you all very much.
DownTheRoad and Mandalay Parr.... your ideas will be Plan A.
Newman FullTimer... Plan B. (but probably should be Plan A for
the next time this happens).
Ol' Bombero.... here is a photo of the on door mounting device and
securing plastic lock. The only "stops" I'm aware of are the back
end of the pocket door slot, and a securing snap-on strap on the door.
I called the Mfr. and learned how to remove the door... they have special
extension devices to assist installation. The "awol" screw remains
unaccounted for... I hope it was originally installed. Thanks.
Pocket door mount hardware...Thanks again ...I'm out camping in the desert so the solution will
have to wait until back at the sticks and brick. I will leave the door
off hoping to avoid damage en route.
Charles