From Find-a-Grave for Charlotte Elizabeth DeBree. Born 1837 Died Oct. 22, 1858, age 21 yrs. 7 months.
The 1860 census for Norfolk in Norfolk County, Virginia lists a John DeBree, 63, born in Pennsylvania as purser in U.S. Navy and Alexander M. DeBree, 35, born in Virginia and lieutenant U.S. Navy. Also John DeBree, Jr. , age 30, born Virginia, physician.
An Alexander M. DeBree enlisted in the Confederate States Navy May, 8, 1862, and made 1st lieutenant August 5, 1862. death records for Norfolk, Virginia, show that an Alexander M. DeBree died there June 1, 1869.
On the gravestone, as far as I could read on the photo, it read "Charlotte Elizabeth DeBree, wife of Alexander M. DeBree, USN."
There is also the name of Charlotte Louisa DeBree, born 1858, died Jan. 16, 1859. It appears they were both interred in the same plot or near each other. Mother and daughter died nearly the same time. I wonder if it was because of disease? Was Alexander based in Pensacola and at home when they died, or was he away at sea.