It is the largest unincorporated town in Shade Township, with a present population of 750. The Cairnbrook post office was established here in 1914. The Graef Lutheran Church and parsonage were erected here in 1917-18 at the corner of McGregor Avenue and Third Street. Dorfman and Hoffman established a clothing factory here in 1955, which employs approximately 185 workers at the present time. Inc. Each property owner is a stockholder in the company.
All streets are hard-surfaced and lighted.
It is the second largest town in Shade Township. Wilbur Wilbur is a small mining town in the western part of the township, one-half mile off Route 53. The town was founded by the Wilbur Coal Mining Company in 1912 on lands formerly owned by Daniel Peterman and J. E. Johnson. The Otterbein United Brethren Church and cemetery are located here. Rockingham Rockingham is a small mining village along Dark Shade Creek on State Route 160.