Combined Engine Company 49 - Blackwell's Island (renamed Welfare Island and then renamed Roosevel Island)
memory master - you might be correct about Engine 49 occupying the firehouse posted. There is not a lot of information about that company or its quarters.
CEC 49 was formed in 1882 as an FDNY combined engine company with temporary quarters on Blackwell's Island. It remained a combined company and protected the prison, mental facilities and impoverished work shops that were part of Blackwell's Island during that era. A firehouse was built later in 1882. Pictures of old Engine 49 quarters when FDNY Fire Academy was established in 1960s:
New quarters for Engine 49 were built in 1949. The company was then disbanded in 1958. The FDNY training academy moved to the newly named Welfare Island in the 1960s and the Mask Service Unit occupied the firehouse. The island transition occurred over the next 30 years. FDNY training academy then moved to Randalls Island. SOC currently maintains quarters and facilities on renamed Roosevelt Island.
This picture was specifically labeled as Engine 49's firehouse on the site I found it (sorry I did not save the source):
Picture probably was taken after Eng 49 was disbanded.
The MSU used the same firehouse as depicted above (picture from WNYF 1960s issue):
Mike Boucher's history lists Engine 49's final firehouse being built in 1949. The pictures about seem to match a firehouse of that date. Maybe someone else can verify if Eng 49 initially used the same firehouse before being disbanded.
Current SOC quarters on renamed Roosevelt Island: .