Sorry I don't have time to answer in more detail. Here are a few primary source documents I have. I'm busy preparing for Chautauqua and library talk, so further comments will probably have to wait. Maybe I'll start a history blog next month and use that for my book draft. A new thread will certainly be needed. The following is original research and notes by Dunelaker.
John Wesley received a land grant from the United States in 1895 for 100 acres in the Pt. Washington area. (South Walton was in Walton County when it was formed in 1824, but was part of Washington County from 1825 until 1913.)
William B. Butler's grant in what I believe is Grayton was in 1896 and was for 160 acres and "eighteen hundredths of an acre."
John Wesley's son, William H. Wesley and wife Katie, received grant in 1903 in the Eastern Lake area of SoWal for 160 acres.
Mickey (youngest of 9 Wesley children) Wesley's surviving husband wrote me that he remembers Mickey telling him of holding her mother's and brothers' hands as they walked down to the beach at Eastern Lake from their home which is now known as the Wesley House at Eden State Gardens. They came down a sand road and crossed a bridge on the north end of Eastern Lake. They had homes on this beach property at Eastern Lake.
I have a picture of Mr. Wesley on Eastern Lake in 1930.
I have a 1931 county map that shows the area of Wesley Eastern Lake grant called "Miramar" (which I was told was what Wesley earlier wanted to call EL community)
The 1939 plat of Eastern Lake Estates by William and Katie Wesley has a Pt. Washington address. (So is it really Pt. Washington Beach?? or maybe Eastern Lake Beach)
Further research in Spanish and other Land Grants would be interesting to me. A number of European countries claimed various parts of Florida during the heavy exploration and colonization years.
I enjoy reading Cabeza de Vaca's 1528 account when he passed by these shores and mentioned native peoples who were living in the area. It has been translated.
I am excited about the not yet announced and official findings of native peoples in Northwest Florida about 20,000 years ago. It is my understanding that the official announcement and papers will be published sometime this year. This particular spot is not in SoWal, though not too far as the canoe paddles. But, who knows, such ancient remains may one day be found here.
Does anyone know what year Grayton had an official plat filed with Walton County or Washington County? An official record of a map or plat with date would be helpful.
Extensive research will be required, imho.
Happy hunting and discussing until then.
The differences and common history of our wonderful SoWal communities are fabulous.
Later.