Can Anyone Identify this Group?

This photo, taken probably in the 1910's, may be of a church group or a farmer's meeting.

Identified people include:
George Heyer (back row, far left in front of the window)

George W. Wallace (back row, open jack with white shirt and no tie)

James Harrison Oliver, identified by grandson Ted Oliver (ted.oliver@mchsi.com) and granddaughter Jeannie Oliver Burch (jeannieoburch@cox.net):
"He was the pastor for a time at Dunbar Chapel Free Will Baptist Church in Indian Mound, TN. He is the gentleman in the 2nd row, seated. To the left of him is a man with a book in his lap, and to the right of him is a man who is standing and holding a folded piece of paper in his hand. He had three sons: William Henry Oliver born in 1903, John Anderson Oliver born in 1906, and James Herschel Oliver born in 1910, I think. William Henry was principal of East Nashville High School for about 25 years and then served as Nashville Schools Superintendant. John Oliver, my father, was principal of West End High School in Nashville. Herschel was a farmer, living in Adams, and then Springfield, Tennessee most of his life. There were three daughters: Myrtle Oliver Stanley, Pearl Oliver Miller, and Ruby Oliver."
"Granddaddy Oliver was a pastor in the area as well as a school teacher. He and his wife, Frances (Fannie) Hembree Oliver had 6 children: William Henry, John Anderson, James Herschel (my father), Myrtle Mae, Bessie Pearl and Ruby Frances. I live in California now, but fly TN several times a year. I am very interested in finding out what the building is behind them. Please let me know if you know."

If you can identify the group or anyone in the photo, please let us know.