BBFD - Thanks for the link - That would eliminate a double adapter hook-up for me. I'll check that out...
After looking closer I think this would be the 50A(F) to 15A(M) long adapter I would need.
Camco 55168 12-Inch 15M/50F PowerGrip Dogbone Electrical Adapter with Handle
I am curious however how the schematic would look like with this adapter with three connections on the 15A(M) end and the four connections of the 50A(F) end.
They may connecting the NEUTRAL and GROUND together which may create another problem to get around.
Roy Ken