I read your threads of inquiry regarding the Swans and The Berry Brock Plantation,,,,,I grew up in South Fulton, formerly Campbell county not far from the Mr Berry Brocks Store. My memories are from the early 1960's and Mr Brock was a very kind elderly gentleman who ran a small store ( supposedly over a hundred years old) at the corner of what is now known as Cochran Mill and Cedar Grove Roads. The store was a museum to me, parking lot graveled with old coke bottle tops and all sorts of interesting things inside the store. Mr Brock didn't sell much as I remember just cokes and candy is all I really remember ,,, I am sure there were cigarettes, tobacco and the like but I dont remember. I think the store was more a social gathering place everybody just stoped in to say hello to Berry as my father did! Of course I didnt mind as the stop was usually good for at least a piece of bubble gum if not a coke! Mr Brocks wife was the cook just up the street at Cedar Grove school. I think I went to the only school I have ever heard of where the kids loved all the food. I can still smell the fresh bread baking and taste the penut butter cookies if I close my eyes. Mr Brocks store along with an old grist mill were burned by arsonist in the mid to late 60's. Mr Brock, I dont beleive lived very long after that and I never saw him after the store burned. I never knew the Brocks to be farmers but it was likely as up into the 1920's agriculture was apparently the only signifiicant economic base in the area. It appears that with a drop in the price of cotton in the early 1900's and the continued onslaught of the boll weavel most of the farmers in the area turned away from cotton and toward other crops or to the emerging Atlanta economy which was becoming more accesible by auto and the trolley which ran to Fairburn. This may correspond to your ancestors moving away from this farm. This economic change is reflected in two diaries I have read of two men in thearea. One of a Henry Newton Cochran, the other of George Washington Hammond. Both of these men experienced hard times related to the agricultural economy and the latter wound up working at the new Biltmore Hotel in Atlanta.
As mentioned by anothor respondent Berry's son and Grandsons still live nearby and may be willing to provide you with further information. I will be glad to provide furher contact information if you respond to me at Rwreck77@AOL.COM
I hope I have been of help and would be very interested in any history you have accumulated regarding this area.