Newsletter January 2009 - Number IXԱրխիվացված 2019-01-03 Wayback Machine, Jefferson Park Historical Society. p. 2. "...we celebrated the publishing of a new book, 'Portage Park', authored by JPHS executive board members Dan Pogorzelski and John Maloof."
Slattery, Ron. (July 2008) "StoryԱրխիվացված 2011-01-06 Wayback Machine", in Bighappyfunhouse. Retrieved on January 11, 2011.
Newsletter January 2009 - Number IXԱրխիվացված 2019-01-03 Wayback Machine, Jefferson Park Historical Society. p. 2. "...we celebrated the publishing of a new book, 'Portage Park', authored by JPHS executive board members Dan Pogorzelski and John Maloof."
