Cogan House Township was formed from parts of
Jackson and
Mifflin townships on December 6, 1843. The
source of
Larrys Creek is in Cogan House Township, just south of the hamlet of Steam Valley. It flows west-southwest through the village of Cogan House, and then under the
Cogan House Covered Bridge. The bridge is also known as the "Buckhorn Covered Bridge" (for a nearby mountain and vanished village) or the "Larrys Creek Covered Bridge" (for the creek it crosses). A petition from the citizens of Cogan House Township for a bridge to be built was filed on September 4, 1876. The
Burr arch truss bridge was built in 1877 and rehabilitated in 1998, and is on the
National Register of Historic Places. Larrys Creek was vitally important to the economic development of Cogan House Township. During the height of the lumber era that swept through Pennsylvania in the mid-to-late 19th century, the creek was used to float logs from the hills of the township to the lumber industry in nearby
Williamsport on the
West Branch Susquehanna River. The township is named for David Cogan, a pioneer who settled on Larrys Creek in 1825. Cogan was one of the few settlers in the area for many years, but wearying of his isolation, he left his homestead in 1842, as did a neighbor named Carter. Cogan's and Carter's houses were used by hunters and travellers. The name "Cogan's House" was given to the area and then to the township. In the spring of 1843, the following men were the first officials named to run the township: Justice of the Peace-Joseph Stryker; Supervisors-John Aikin and G. Botts; School Directors-Joseph Stryker, John Weigel, Benjamin Quimby, Paul Stryker, Charles Straub, and G. Botts. Descendants of some of these men still live in the township. The area was home to fine timber and an abundance of game in the 1800s. The township became one of the best lumbering districts in the county and soon sawmills began to spring up. James Wood, Isaiah Hayes, F. Whitlock and Mr. Schuyler operated some of the earliest local mills. The virgin trees that once covered these hills were harvested to feed the lumber mills of Williamsport. However, by the early 1900s only stumps from the giant trees remained. The land no longer held economic interest for the lumber barons. Many of the men who came to work in the woods and at the sawmills had married and created families while living in the township. Some decided to stay on and try their hand at
subsistence farming. Slowly, the family farm took root in the sawdust left behind by the woodcutters. The settlements at Brookside, White Pine, Cogan House, Beech Grove, Green Mountain, Steam Valley and on Buckhorn Mountain took shape. Many grew into villages where a horse could be shod, supplies bought at the general store, mail and newspapers picked up, a vote cast at election time and gossip exchanged. Churches and schools were built to accommodate the spiritual and educational needs of the community. By 1900 Cogan House Township was home to five churches, five post offices, seven schools, two general stores and a thriving population. During the 20th century this mostly agrarian society was redefined through war, modern transportation, better roads, advanced communication systems, the lure of higher wages in far away places, and the consolidation of schools and churches. The township population decreased to 521 as of the 1970 census and has since climbed back to over 900. ==Geography==