July 17, 1888 – Company organized at 333 Main Street, Charlestown.
1889 – Company members of Chemical Engine Company 9 in 1889:
1. Hoseman Daniel K. Wheelock, driver.
2. Hoseman William J. Toomey.
1876 Champion 100 gallon chemical engine, remodeled in 1889.
July 26, 1918 – COMPANY DISBANDED.