They probably should have named it for Peter Kolb. At least he lived there.
https://www.nps.gov/stateoftheparks/kemo/culturalresources/kolbfarmhouse.cfm
https://www.nps.gov/stateoftheparks/kemo/culturalresources/kolbfarmhouse.cfm
Probably the major reason that would not have worked is that Kolb settled here four years after Cobb County was created.