Author
- Arthur, T. S. 1 results
- Brunsman, Howard George, 1904- 1 results
- Chen, S. Andrew 1 results
- Erie Historical Museum & Planetarium 1 results
- Fisher, Sydney George, 1856-1927 2 results
- Governor's Pennsylvania Heritage Affairs Commission 1 results
- Huidekoper, Harm Jan, (Harm Jan), 1776-1854 2 results
- Karaska, Gerald J. 1 results
- Miller, Herman P. 1 results
- Ngoc Phuong, Truong 1 results
- Olson, Debbie 1 results
- Pennsylvania Legislature Senate 1 results
- Pennsylvania State Data Center 1 results
- Pennsylvania State Planning Board 1 results
- Pennsylvania. Department of Commerce 1 results
- Pleasant, Philip 1 results
- Regional Planning Federation of the Philadelphia Tri-State District Population Committee 1 results
- United States. Bureau of the Census 7 results