Waddell House, also known as Pastorium of the First Baptist Church or Van Amburg House, is a historic home located at Lexington, Lafayette County, Missouri. It was built about 1840, and is a two-story, red brick dwelling on a partial basement. It features decorative elements such as clustered chimney pots, scalloped vergeboards with pendants, and a spindled stickwork Late Victorian porch with mansard roof. William Bradford Waddell acquired the house in trade for stock in the local Baptist Female College in 1869.