Hello LIRR Steamer
Thanks much for posting all the historical info ! I would have done so as I likewise know all of that history - but I was already writing too much, heh. Glad you joined in with the excellent background history.
Well, to visually add to your historical data - here are some "model photos" on my "EL" layout to show in that "era", what the 1939 WF "BMT era" Q-types (for "Queens") looked like running on the EL along with (via Manhattan IRT 2nd Ave EL service to Queens via the Queensboro Bridge upper level, of course) IRT MUDC "EL" Cars. And the IRT Standard body subway cars and the then new 50 car fleet of 1939 WF Steinway Body -- Low V subway trains.
regards ! - Joe F