Many famous people are associated with these Cowlitz County historic places including Hulda Klager, Nat Smith, W.H. Pounder, J. D. Tennant and Adam Catlin.
Some of the country's most noteable architects helped create the Cowlitz County places including Isaacson Iron Works, S. Herbert Hare, Strauss Engineering Corp., Pomeroy,J.H., & Co., Harry R. Powell, H.L. Copeland, George MacPherson, Bebb & Gould, State of Washington Highway Dep't. and Fred Clearman. Prominent architectural styles found in Cowlitz Country are Classical Revival, Art Deco and Colonial Revival.