Source: 1915 Rockford Park District Annual and 1913 Sanborn Map Rockford Winnebago County

A Digital Collection of Rockford, Illinois History
Source: 1915 Rockford Park District Annual and 1913 Sanborn Map Rockford Winnebago County
Source: Growing the Midwest Garden, by Edward Lyon, Timber Press, 2015, p.73.
Source: Rockford Register Star, June 6, 1981
Source: Rockford Register Star, Mar. 8, 2020.
Source: Northwest Quarterly, Spring-Summer 2019
Source: Rockford Register Star, June 14, 2002
Register Star, July 21, 1990, Ben Rand.
Source: Rockford Register Star, June 30, 2019
Source: Rockford Register Star, June 30, 2019
Source: Rockford Register Star, Ken De Coster, May 3, 2019, p. A1.