| University of Illinois at Urbana-Champaign | Contact institution for more information. | Microfilm service copy | | <1970:8:14> <1971:10:1> | Note: Please consult staff in History, Philosophy, and Newspaper Library to request material.
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| Abraham Lincoln Presidential Library | Contact institution for more information. | Microfilm service copy | | <1968:12:20> <1969:1:2-12:11> <1970:1:16-12:18> <1971:1:1-1:29/2:12, 11:5-12:20> | |
| University of Illinois at Urbana-Champaign | Contact institution for more information. | Microfilm master copy | | <1970:8:14> <1971:10:1> | Note: Please consult staff in History, Philosophy, and Newspaper Library to request material.
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| Chicago History Museum (onsite storage) | | Original print | | <1970:8:14> <1971:10:1> | |