Many famous people are associated with these St. Croix County historic places including Herman Leon Humphrey, William H. Phipps, Dr. Boyd T. Williams, Frank W. Epley, Dr. Samuel C. Johnson and Samuel Townsend Merritt.
Some of the country's most noteable architects helped create the St. Croix County places including C.A.P. Turner, American Bridge Company of Chicag, American Bridge Co., August Johnson, Andrews Brothers, Charles Dowie, Mr. Kimball, Ammah Andrews, B & W Concrete Stone Co. and VanRyn & DeGelleke. Prominent architectural styles found in St. Croix Country are Italianate, Queen Anne and Greek Revival.