Oak Grove Baptist Church near McGirk (seventeen miles southwest of Hamilton) was admitted to the Hamilton County Baptist Association on 9 September, 1878. It was organized in 1878 by D. W. White.  Oak Grove Baptist church was admitted to the Comanche Baptist Association on 3 September, 1880. The assumption is made that Oak Grove Baptist Church met in the Oak Grove School.  Its history is documented until 1884 in HCBA minutes.

Pastor:
D. W. White--1878--1879, and 1881. 

Church Clerk:
F. J. Crews -- 1881 to 1883

Messengers to the annual association meeting were: 1878--H. Campbell, J. A. Nunley, J. N. Thornsberry 1879--G. B. Martin, J. M. Thornsberry, H. Campbell