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- Genealogical Society of Pennsylvania 1 results
- Genealogical Society of Southwestern Pennsylvania 1 results
- Geological Survey (U.S.) 2 results
- Georgede Benneville Keim Memorial Collection 1 results
- Godcharles, Frederic Antes, 1872- 1 results
- Gross, Patricia A. 2 results
- Grubb, Edgar B. 1 results
- Haight, Robert 1 results
- Hain, H. H. (Harry Harrison), 1873- 1 results
- Hanna, Charles A. (Charles Augustus), 1863-1950 1 results
- Hanson, Joan Search 1 results
- Hanson, Kenneth L. 1 results
- Harrison, Eliza Cope 1 results
- Harriss, Helen L. 1 results
- Hartman, Cynthia 1 results
- Heilman, Leonard A. 2 results
- Heilman, Robert A. 1 results
- Hildeburn, Charles R. (Charles Riché), 1855-1901 1 results
- Historical Society of Montgomery County (Pa.) 1 results
- Historical Society of Pennsylvania 6 results
- Historical Society of Western Pennsylvania 1 results
- Hodge, Edwin S. 1 results
- Hoenstine, Floyd G. 1 results
- Hollenbach, David M. 6 results
- Hollenbach, Raymond E. 1 results
- Humphrey, John T. 1 results
- Huss, Becky 1 results
- Huss, Rebecca 1 results
- Iscrupe, William L. 2 results
- Jackson, Ronald Vern 3 results
- Jacobs, Ruthanna 1 results
- Johnson, Arta F. 1 results
- Kenin, Milton 1 results
- Koelble, Susan S. 1 results
- Koger, M. V. (Marvin Vastine) 1 results
- Landis, Milton W. (Milton William), 1897- 1 results
- Learning Company 1 results
- Learning Company (Firm) 1 results
- Linn, John Blair, 1831-1899 1 results
- Mast, C. Z. (Christian Z.), 1885- 1 results
- Mast, J. Lemar 1 results
- Mast, Lois Ann, 1951- 1 results
- McGary, Joanne 1 results
- McGrew, John R. 1 results
- McKnight, W. J. (William James), 1836-1918 1 results
- McMahon, William A. 1 results
- McQuillis, Shirley G. 2 results
- Miller, Dorothy M. 1 results
- Morgan, Buckley 1 results
- Morgan, Yvonne L. Blair 1 results more…