Author
Gillingham, Harrold E. 1864-1954
3
Roach, Hannah Benner
3
Historical Society of Pennsylvania
2
Kennedy, David Johnson, 1816-1898,
2
Jenkins, Geraint H.
1
Krasner-Khait, Barbara
1
Landschaftsverband Rheinland
1
Monthly Meeting of Friends of Philadelphia
1
Pesch, Dieter, 1944-
1
Riewald, Jacobus Gerhardus, 1910-2006
1
Roney, Jessica C. 1978-
1
Westerkamp, Marilyn J.
1