The Castlio Cemetery is located a few hundred feet north of what was known as Toedebusch Road. Enter the August Busch Conservation Area from Highway D. Turn left at the T and drive west, following signs to Lake 37. Park in the lot at the north side of the lake and walk south-southwest across the dam. The cemetery contains eight graves:
- O. C. Castlio d. 31 May 1871 (with Cordelia) 47y 18d
- Cordelia Castlio b. 1 Feb 1831 28 Feb 1904
- Infant Castlio 13 Sep 1868 stillborn son of O. C. and Cordelia
- Samuel H. Castlio b. 8 Apr 1870 13 Apr 1870 son of O. C. and Cordelia
- Faunt Castlio 1888 son of Uncas and Allene 8m 18d
- Mary E. Patton 20 Oct 1851 wife of James 32yr 6m 2d
- Thomas Stephenson 20 May 1843 son of T. D. and M. I.
- Thomas D. Stephenson 30 Jan 1848 62y 5m 25d
According to Lilian Hays Oliver in her book Crow's Nest, the infant Charlie Landers was buried here in about 1860.