From Forts of Maine: Silent Sentinels of the Pine Tree State.
There is some question as to whether or not cannon shots were actually fired from the fort during the War of 1812. But an article in a period Boston paper mentions that in August 1813 the fort fired on a British privateer lurking outside Portland Harbor.
Thomas Lincoln Casey also worked on Fort Gorges and Fort Preble in Portland, Maine.
During the Spanish-American War, six 15-inch Rodman guns were mounted at Fort Scammell and it also became a center for laying mines.
During World War I, anti-aircraft gun emplacements were built.
House Island, on which Fort Scammell is located, became a transfer area for local run runners.