The earliest marked grave in this cemetery, that of Elizabeth Moore, dates to 1857. She was buried on part of a 160-acre tract of land settled by the Thomas B. Martin family in 1853 and patented to Martin by the state of Texas six years later. The existence of the cemetery is reflected in the Parker County deed records as early as 1869, when Martin sold his property to John H. and Thomas J. Lemley. The Lemleys came to Texas from Illinois in the mid-1850s and eventually settled in Parker County. The cemetery on their property, which came to be named for them, was used over the years for members of the family, as well as for friends and nearby settlers. Tombstones mark the graves of landowners Thomas Martin and George Lemley, as well as others who lived and died in the area, many of whom were victims of the hardships of pioneer life on the Texas frontier. At least five veterans of the Civil War also are buried here. Many graves are marked only with native rocks. The historic Lemley Cemetery is thus an important reflection of the heritage of this part of Parker County. (1992)