Author/Creator
- Geological Survey (U.S.)30
- United States. Congress. House27
- United States. Bureau of the Census24
- American Bar Association. Affiliate Outreach Project14
- American Bar Association. Young Lawyers Division12
- United States. Environmental Protection Agency. Region V.11
- United States10
- United States. Administration on Aging10
- U.S. Nuclear Regulatory Commission. Office of Nuclear Reactor Regulation9
- United Illinois and Wabash Land Companies9
- United States. Congress. House. Committee on Public Lands9
- United States. Congress. House. Committee on Rivers and Harbors9
- American Bar Association. Fund for Justice and Education8
- Illinois8
- North Central Forest Experiment Station (Saint Paul, Minn.)8
- United States Commission on Civil Rights. Illinois Advisory Committee8
- Puterbaugh, Sabin D. (Sabin Don), 1834-18927
- United States. Congress. Senate7
- Mills, Patrick C.6
- United States. Congress. House. Committee on Interstate and Foreign Commerce6