Rock River express oclc no. 11383944 Published in: Rockford, IL (Winnebago County) Years Published: 1840 - 1841 Where we found this title: Abraham Lincoln Presidential Library Some issues also microfilmed on Reel M-27B. Format: Microfilm service copy Holdings: <1840:5:5-1841:5:22> Abraham Lincoln Presidential Library Format: Microfilm master copy Holdings: <1840:5:5-1841:5:22> Rock Island Public Library Format: Microfilm service copy Holdings: <1840:8:18, 11:21-28, 12:12> <1841:1:5,23, 2:20-27, 3:13, 4:17, 5:8> Rockford Public Library Format: Microfilm service copy Holdings: <1840:5:5-1841:5:22> University of Illinois at Urbana-Champaign Format: Microfilm master copy Holdings: <1841:5:22> University of Illinois at Urbana-Champaign Format: Microfilm service copy Holdings: <1841:5:22> University of Illinois at Urbana-Champaign Format: Original print Holdings: <1841:5:22>