I believe that the GERLACHs (CARLOCKs) came over in the early 1700s into the Mohawk Valley of New York. they were in Smyth County by the Revolution. Hans Christian Gerlach (John Christian Carlock) served in the War. His son Abraham Carlock and others went west to TN and then IL. Another Carlock was connected with one of the Bristol colleges. I have The HISTORY OF THE CARLOCK FAMILY and would like to correspond with any Carlocks still around in SWVA. Alice