The Egmont Key Lighthouse Cemetery contains burials associated with the Spanish American War quarantine camp in 1898, including John O'Neil, a private in the 1st Volunteer Cavalry, Jos. I. Shannon of the 7th Infantry, Harry Mitchell of the U.S. Infantry, Charles Williams, a "Colored" soldier, Robert Bentson, a seaman on the U.S. Lighthouse Tender Laurel, and others connected with the U.S. Marine Hospital Service. It also includes earlier graves such as Jas. A. Brainerd of Company A, 26th Michigan Infantry, who died on 7/15/1887, William Rull, a Colored hospital attendant who died in 1887, and a Chinese man, Mch Chow, who died on 7/20/1887. The cemetery also holds the graves of Seminole people detained on Egmont Key, including Chief Tommy, who died on 9/5/1857, a Seminole child aged 12 months who died on 4/24/1852, a Seminole child aged 6 months who died on 6/12/1852, a Seminole boy who died on 7/27/1852, and a Seminole girl who died in 1857. Members of a lighthouse keeper family are buried there as well, including two Moore infant boys, Nellie Moore, an infant girl, Azaline Bahrt, mother, Marie Bahrt, an infant girl, and Carlotte Bahrt, an infant girl. The cemetery also includes an unknown Italian laborer, a coal tender for the lighthouse, who drowned in 1891.