History of the Black Firemen on the Los Angeles Fire Department, 1897 to 1956
From the Los Angeles Fire Department Historyical Archives I found this web site that chronicles the history of Black Firefighters through 1956.
Here is an excerpt:
Fire Station No. 14
On November 2, 1936, twelve years after the segregation of Engine 30 the white firemen were removed from Fire Station 14 and it also became all-black. Angry at being removed from their station, the whites trashed the building with garbage and fecal matter. The Battalion Chief ordered them back to clean up their mess.
Click on the link above to read the rest.