Monroe, located in Section 28 of Colorado Township, was established in 1888 when lots went on sale for $1 each. The cemetery was surveyed on 18 October 1888 and the first purchaser was B.J. Harrenstine on 19 October.
The earliest tombstones date to 1874 (Mary Skinner and Eva Metcalf), but it appears those bodies were originally buried on homesteads and later moved in Monroe.
Monroe contains 48 blocks of four lots each and 2 blocks that include 49 individual spaces.
Colorado Township officials at the time the cemetery was founded were J.P. Webb, Trustee, J.J. Peate, clerk, and J.H. Tracy, Treasurer.
The tombstone at the right is difficult to read, but it marks the grave of Frank W. Broyles, who died 14 September 1888. The "stone" actually seems to be made of petrified wood. Broyles, born in Ohio, was 22 years of age and died of dropsy.