I had mentioned earlier Rollin J. Lobaugh... Well known O-scale manufacturer!
In 1932, Carl Purinton founded the Brotherhood of Live Steamers (now IBLS) at his home in Massachusetts. About the same time, Rollin Lobaugh was rolling out 1/2-inch scale BRASS rail and related items.
So take a look at the letter I found in my Archives.. It might interest you !
KRK