This is the Historic Oella Cemetery for the mill workers and their families on hillside above textile mill village of Oella, near Ellicott City. The Union Manufacturing Company (founded in 1808) built and operated the cotton mill, using water power provided by the Patapsco River dammed 1.75 miles upstream (near the Rt 40 bridge). WJ Dickey & Sons purchased mill and village at auction 1887. Mill operation shifted to producing woolen textiles through both world wars and until Spring 1972. Earliest interred here lived during Colonial era. Last burial ~ 1950. Now some care being provided for cemetery by the Oella Historical Society, such as formally surveying the parcel, marking corners with granite posts, and scheduling clean-ups.