Cemetery notes and/or description: The county line between Mason and Putnam runs along the side of the cemetery. The town of Pliny is in Putnam, but the cemetery (back into the 1800s) is in Mason County.
In 1878 a goup of men gathered in the old log school house near where Mt. Union Church stands today for a conference about building a church. The men agreed to donate logs and take them to the sawmill belonging to Wess Tucker of Pliny to be sawed.
The families who donated the logs included the Skinners, Legues, Wears, Buckles, Dunns, Martins, Tuckers, McCombs, Carters, Irvins, Moodyspaugh, Roseberrys, Deweeses, Whitts, Roods, and Harbour families.
The church was then erected in 1877. All labor and materials were donated, the trim and window sills were all hand planed. The church was dedicated in October of 1878 and the first trustee was Dan Skinner. In 1880 his son, Henry, became the adult class teacher and remained for twenty-four years.
Mr. and Mrs. Lewis Bowcott donated the land for the church. The first person saved and united with the church was Jenny Whitt at the age of 17 in the year 1879. The first pastor was John Williams in 1880. The cemetery lands were donated by the Simeon Legue, Bowcott, and J. C. Livezey families."