September 27, 1886 – Company organized at a new firehouse at 761 Saratoga Street, East Boston.
1889 – Company members of Chemical Engine Company 7 (East Boston) in 1889:
Firehouse at 761 Saratoga Street, East Boston.
1. Lieutenant John W. Godbold.
2. Hoseman John Nolan.
3. Hoseman Warren A. Smith.
1886 Babcock 200 gallon chemical engine.
May 18, 1891 – Company moved to the quarters of Hose Co. 6 at 391 Chelsea Street, East Boston.
September 21, 1902 – Company moved to a new firehouse at 360 Saratoga Street, near Prescott Street, East Boston.
January, 1922 – Company received a 1917 Seagrave motor hose & chemical wagon, Shop # 311.
1924 – Hoseman James B. Buchanan and Hoseman Arthur A. Ryan, Chemical Engine Company 7, were awarded the Roll of Merit for their actions at 284 Princeton Street, East Boston, on January 28, 1924. Citation
June 14, 1926 – COMPANY DISBANDED. Company became Ladder Company 31.