The lack of knowledge alone with these new unknown compounds would scare anyone away. We are talking about the 40's-50's, correct? How the fuck would Reeve's know the shit wouldn't give him cancer, to throw out an extreme example. No science backed studies or long term research but Reeve's is gonna give it a shot, for 8-10 extra lbs?
I really don't care about Reeves, I am simply stating that we should simply be willing to entertain that Testosterone/Androgen use could predate Zeiger by 5-10 years. Again we have it being discussed in popular culture throughout the late 1940's, Companies selling methyltestosterone by the FDA's own admission by mail order in 1948-1950. We have have multiple studies on Hypo glandular children, showing weight and muscle gain in patients. And we have 18+ compounds being offered for sale through major drug companies.
Also this whole "The lack of knowledge alone with these new unknown compounds would scare anyone away." idea doesn't hold water. By that logic bodybuilders wouldn't have tried Clenbuterol, Synthol, etc.... only a couple of years after their invention. Nor would they have been searching for "monkey GH", or reintroducing DNP, or playing with insulin, or plasma expanders, etc....