January 10, 1907 – Company organized at the quarters built on October 5, 1894 for Combination Wagon #1 at1884 Dorchester Avenue , in the Peabody Square section of Dorchester. The company was equipped with an 1890 Amoskeag Third Size steam engine, Serial # 663, ex-Engine 20. Newspaper Story
June 13, 1909 – The Firefighter’s Monument at Forest Hills Cemetery is dedicated. Margaret and Josephine McLean of Ashmont performed the unveiling ceremony. They are the daughters of Captain Walter McLean, Engine Company 46, who served as Chairman of the Monument Committee.
July 3, 1914 – Company received a new 1914 Robinson motor Combination Hose & Chemical wagon, No Serial #, Shop # 304 , replacing the horse-drawn Hose Wagon.
September 1, 1914 – Company received a Robinson Two-Wheel tractor (no serial #), attached to the 1890 Amoskeag steam pumper, Serial # 663, replacing the horses.
March 23, 1915 – Company received a new 1914 American LaFrance, Type 10, Combination Hose & Chemical wagon, Serial # 564, Shop # 306.
March 27, 1915 – Company received a 1915 Christie tractor, Shop # 105T , attached to a 1909 Amoskeag Second Size steam engine, ex-Engine 33.
July 4, 1917 – Company moved to a temporary location at 1867 Dorchester Avenue, for firehouse renovations.
October 12, 1917 – Company returned to its permanent quarters at 1884 Dorchester Avenue.
October 25, 1920 – Company received a new 1920 American LaFrance, Type 75, 750gpm pumper, Serial 2810, Shop # 129.
March 28, 1923 – Engine Company 46 responded, along with Engine Company 12, to a major fire at Nantasket Beach, Hull, during very cold conditions.
July 29, 1924 – Company received a 1923 American LaFrance, Type 75, 750gpm pumper, Serial # 4345, Shop # 163.
June 2, 1926 – Company received a new 1926 American LaFrance, Type 75, Combination Hose & Chemical wagon, Serial # 5522, Shop # 351.
June 1, 1938 – Ladder Company 27 moved into Engine 46’s quarters. Ladder 27’s previous quarters had been with Engine 20 at 32 Walnut Street , in the Neponset section of Dorchester.
December 5, 1946 – Due to firehouse renovations, company moved to 51 River Street , in the Lower Mills section of Dorchester, formerly occupied by Ladder 6.
June 26, 1947 – Company moved back to remodeled quarters at 1884 Dorchester Avenue
January 8, 1948 – Company received a new 1947 Pirsch 1000gpm pumper, Serial # 1734, Serial # 127.
September 3, 1948 – Company received a new 1948 American LaFrance, ‘700 Series, Hose & Booster wagon, Serial # L3599, Shop # 310.
May 14, 1957 – A Federal Civil Defense (CD) pumper, (Engine 60), CD #1, was placed in service, as a temporary replacement for the 1947 Pirsch pumper, Serial # 127.
September, 1957 – The 1947 Pirsch 1000gpm pumper, Serial # 127 , was returned to service.
February 25, 1958 – Company changed from Double-unit operation to Combination Single-Double unit operation. The pumper runs first, before the hose wagon, under this operation.
August 12, 1958 – COMPANY DEACTIVATED.