Prairie Mound Cemetery was in use by 1882, when adjoining property was deeded to the Prairie Mound Methodist Episcopal Church, South. The earliest marked grave is that of Edgar Myers, who lived from 1875 to 1878 and was the son of J. E. and M. J. Myers. Church services were discontinued before 1920, and a public school organized nearby in 1878 was consolidated with neighboring districts in the 1940s. Shortly after the original sanctuary was removed from the site in 1961, the Lark Heath Memorial Chapel was dedicated. Many pioneer settlers of the Argyle-Justin area are buried there.