Sewickley Valley Historical SocietyArchived 2007-09-28 at the Wayback MachineSignals, XXXIII, Number 5, February 2006. Architect J. W. Kerr Leaves His Mark: Western Pennsylvania's Prolific Architect, W. Brewster Cockrell. Retrieved on November 19, 2009.
Sewickley Valley Historical SocietyArchived 2007-09-28 at the Wayback MachineSignals, XXXIII, Number 5, February 2006. Architect J. W. Kerr Leaves His Mark: Western Pennsylvania's Prolific Architect, W. Brewster Cockrell. Retrieved on November 19, 2009.