found: NUCMC data from Univ. Wash. Lib. for Hansen, J.B. Papers, 1961-1974(Cathlamet, Wash.)
found: LC data base, 2-19-88(hdg.: Cathlamet, Wash.)
found: Rand McNally comm'l atlas, c1984(Cathlamet; Wahkiakum Co.)
found: GeoNames, algorithmically matched, 2009(ppl; 46°12ʹ11ʺN 123°22ʹ59ʺW)
found: Wikipedia, July 3, 2019(Cathlamet, Washington; town in Wahkiakum County, Washington; county seat; 46°12ʹ14ʺN 123°23ʹ2ʺW (46.203767, -123.383838))
found: GNIS, July 3, 2019(Cathlamet; variants: Birnie's Retreat, Birnie's Trading Post, Cathlamah, Kahelamit, Katalamet, Kathlamet; populated place that is also an incorporated place with the same name; Wahkiakum County, Washington, county seat)
found: Washington place names, via WWW, July 3, 2019(Cathlamet is a town on the north bank of the Columbia River, north of Little Island and Puget Island, on Cathlamet Channel in southeast Wahkiakum County. The name, which is that of a small Indian band, means stone, and relates to the rocky course of the Columbia River through Cathlamet Channel. James Birnie, once an employee of Hudson's Bay Company, operated a trading post there in the 1860s. Alternate names once used include Birnie's Retreat and Birnie's Trading Post. Cathlamet as incorporated February 18, 1907)