This is the smallest township in the county. It comprises a peninsula nearly surrounded by the Youghiogheny river, with the county line as the eastern boundary. The population in 1880 was 882; in 1870 (including Versailles), 2,194.

There are three villages, Coultersville, Osceola and Alpsville. Coultersville was laid out for Miss Margaret Coulter, owner of the property, by Col. Richard Coulter, of Greensburg, about 1852, and reached its present proportions before the panic of 1873. The population is composed almost entirely of miners. Greenock Lodge, No. 284, K. of P., was instituted January 16,1871; Youghiogheny Valley Lodge, No. 555, I. O. O. F., November 15, 1859; Cooperative Assembly, No. 6128, K. of L., August 5, 1886. The Baptist Church was organized in 1863, and the place of worship erected in 1873. Union chapel (Methodist Episcopal) was formerly a schoolhouse. The postoffice is known as Duncan. Postmasters: R. R. McQuistion, appointed 1864; George W. Roberts, Jr., 1869; Samuel Foster, 1870; J. K. Howell, 1872; J. C. Love, 1873; F. J. Penney, 1874; J. L. Penney, 1875; George Thompson, 1876; C. Shaner, 1878; Joseph Snyder, 1884; John McElure, 1885.

Osceola and Alpsville are virtually one village, and not very large even when so considered. There are important coal- and coke-works in the vicinity. St. Patrick’s Catholic church was dedicated September 1, 1867, the cornerstone having been laid September 23d of the previous year. Pastors: Revs. P. M. Ward, Peter May, John Staub, James McTighe, Thomas McEurne, H. P. Connery.