Several famous people are associated with these Jefferson County historic places including John Jay French and Miles Frank Yount.
Some of the country's most noteable architects helped create the Jefferson County places including Uninon Bridge & Construction, Fred C. Stone, Tom & Sons Lovell, James K. Taylor, dionicio Rodriguez, et al. Fort Pitt Bridge Works, A. Babin, J.H. Baxter, Robert Washington Sanders and Fred Stone. Prominent architectural styles found in Jefferson Country are Classical Revival, Art Deco and Queen Anne.