 The 7th Company was commanded by Captain Augustin Thompson, who is best known as the inventor of Moxie soda.Fort Popham was originally designed to mount 42 heavy guns, a mix of 10-inch and 15-inch Rodman guns, but construction was halted in 1869 with only two of the planned three tiers completed.In the late 19th century, Fort Popham's armament consisted of 36 Rodman guns and some 300-pounder (10-inch) and smaller Parrott rifles.