After 100 years of military use, the fort was decommissioned in 1950[2] and acquired by the Metropolitan District Commission for historic preservation and recreation in 1958.
[1] To this day, in the fort's dark corridors, the legend lives on of "The Lady in Black," the ghost of a Confederate prisoner's wife who is said to have been sentenced to death for aiding in an escape after disguising herself as a male soldier, and hanged in a black robe which was the best the soldiers could do to accommodate her last request of being executed in female clothing.
[3][4] The myth was a creation of author Edward Rowe Snow to bring attention to Fort Warren need for preservation and protection.
[citation needed] The island has fields for recreational use, a small food vendor, and twenty one mooring balls available to the public by reservation.
The cenotaph commemorating 13 southern Civil War soldiers, who died while imprisoned at Fort Warren, remained on display until Governor Charlie Baker called for its removal in June 2017.