Source: Northwest Quarterly, Cabin Fever 2019, vol.16, no.1
1857
State St., E, and cor 1st St. – 1857
State St., East, and corner 1st St., Enoch and Davis’ Brick Block
Source: 1857 Rockford City Directory
“Mullins Researches Rockford Institute” – 1964
Source: Rockford Register-Republic June 12, 1964