The Spanish colonial city of St. Augustine, along with the entire Florida Territory became de facto American possessions after the 1819 signing of the Adams-Onis Treaty.
Recognizing a need for a formal Protestant burial ground an area just outside the city gate was chosen by the new American administration in St. Augustine.
The first burials occurred in 1821 just prior to a yellow fever epidemic which claimed the lives of a large numbers of the city's inhabitants.
Thomas Alexander, who then turned over it to the Presbyterian Church in 1832, burials continued until 1884 when both Huguenot and Tolomato cemeteries were closed.
These succeed, through some distance - 10 feet north - from the two children's graves mentioned above on this page.
The above, each covered with horizontal marble slab on raised cement foundation, differ only in length.