Source: Rockford Register Star June 21, 2006
Klehm Arboretum
Klehm Arboretum & Botanic Garden – 1988, “Land donor’s objections challenged”
Source: Rockford Register Star – July 14, 1988
A Digital Collection of Rockford, Illinois History
Source: Rockford Register Star June 21, 2006
Source: Rockford Register Star – July 14, 1988