Saint Mary's Episcopal Church Memorial Garden, Milton, Santa Rosa County, Florida, 32570 USA: Find a Grave St. Mary's Episcopal Church and Rectory is an historic Carpenter Gothic style Episcopal church and its adjacent rectory located at 300 (now 6849) Oak Street in Milton, Florida. On May 6, 1982, it was added to the U.S. National Register of Historic Places. The rectory is also known as t...