William H. Block Co. was created in 1896.
William H. Block Co. ended in 1987.
Anti H-Block was created in 1981.
Dr. H. Huber Block was created in 1882.
H. C. Prange Co. was created in 1881.
William H. Ray House was created in 1893.
William H. Wells House was created in 1889.
William H. Burton House was created in 1870.
William H. Harsha Bridge was created in 2001.
William H. Roberts House was created in 1883.
William H. Natcher Bridge was created in 2002.
Fort William H. Seward was created in 1902.
William H. Moore House was created in 1898.