The Kolb's are thought to have left the Mennonite Church in Pennsylvania and come to the Pee Dee region of South Carolina. The family line in the Sumter County, S. C. area pronounces their "Kolb" name as "Culp".
You can check out what I have by way of the index in this [here] website.
The annual family reunion began about 1892 & is always held on the first Sunday after Labor Day. For info, contact Horace B. Curtis of Sumter, S.C. hcurtis113@aol.com or wardmc@msn.com [a web site]
(2000; update 4 September 2004)