April 4, 1956 – Engine Squad Company 53 and Engine Company 45 swapped companies, designations and apparatus. Engine Squad Company 53 was designated Engine Company 53. Engine Company 45 was designated Engine Squad Company 45.
June 11, 1959 – Engine Squad Company 45 moved, along with Ladder Company 16, from 4246 Washington Street , Roslindale, to 315 Cummins Highway, Roslindale. That address was changed on November 21, 1961 to 945 Canterbury Street , as it remains today.
August 6, 1968 – Company received a 1964 Ward LaFrance, Model P90, 1250gpm pumper, with a squad body, Serial # 64-9011, Shop #177, ex-Engine Squad 14.
July 31, 1969 – Company was redesignated Engine Company 45. The rescue equipment carried on-board was transferred to Ladder Company 16. The Engine-Squad concept was discontinued.