The house is unusual as one of only four known historic Saltbox-style buildings in Utah. The other three are the Lauritz Smith House (NRHP-listed) in Draper, the William D. Skeen House (NRHP-listed) in Plain City, and the Joseph Beesley House in Provo (which has been significantly modified).See sourcing in linked other three articles As can be seen in photos accompanying the NRHP nomination, the house's rear is extended out under a long shed roof.
