Grayburg Children Cemetery

Sour Lake, Texas
From a 1971 book "Colored Infant Cemetery located West of Greyburg along the Missouri Pacific Railroad in a wooded tract of land are the graves of three little babes lost in an unkept, never visited cemetery."

I need help from a local to find this cemetery or to get information on it.

Jones, Jack   26 Dec 1909   7 Apr 1910   Sleep on sweet babe, and take thy rest. God called thee home, He thought it best.
Jones, James L   17 Jun 1907   7 Oct 1910   How much of sorrow, how much of joy is buried with our darling boy.
Reneau, Ethel E Lizzy   25 Oct 1910   24 Jan 1911