In 1880 I found John Gildn (Gilder) in the household of Samuel Buffalow in Henry CO., AL.He is listed as a grandson. But I don't think the relationship listed is accurate.
I have that Samuel Buffalow (he's listed as Lemuel on Ancestry.com) married Gillinah Gilford 3 Aug 1837 Randolph CO., GA.
Irby Gilder married Winneford Gilford.The had a son John which is the same age as the John listed in 1880.I'm wondering if John Gilder wasn't a nephew.
Samuel Buffalow can be found in the 1840 Randolph CO., GA census then in the 1850-1880 Henry Co., AL censuses.His daughter Bashaby married a Skipper. Samuel was a witness on land deeds for Irby Gilder while he was in Randolph Co., GA.