Bob
I ran across an article that claimed Atlanta was the first city in the Deep South with three golf courses, and Barker designed two of them--Brookhaven (Capital City) and Druid Hills and redsigned the other--Atlanta Athletic Club. I believe the article was 1910 or 1911. Atlanta might be the best place to study his work....if there is anything left.
He was a fine English amateur from Yorkshire, who competed with Colt, Darwin, Hutchison, Hutchinson, Hilton, Ball, Maxwell, etc. He was a protege of Sandy Herd, and like Herd made the unusual move from top amateur to professional. He took the job of pro at GCGC in 1906 or 1907. That was a hell of a move...British amateur to head professional at one of the top clubs in the US, if not the top club. He was at GCGC when Travis made many of his historic changes...Travis (and American Golfer) were major promoters of Barker.