Author
Philadelphia Record
15
John Bartram Association
6
Landis Valley Museum
6
Miller, Steve
6
Pippart, Nancy
6
Philadelphia's Magic Gardens
5
Abbot, Elizabeth O.
4
Musil, Ferdinand L.,
4
Philadelphia Zoological Garden
4
Spring Garden (Philadelphia, Pa.)
4
Zoological Society of Philadelphia
4
Albertype Co
3
Bell, D. Sargent, 1876-194-
3
Chester County Horticultural Society (West Chester, Pa.)
3
David Landreth & Sons
3
Levine, Adam
3
Longwood Gardens (Kennett Square, Pa.)
3
National War Garden Commission
3
Pennsylvania Horticultural Society
3
Slovak Garden (Maitland, Fla.)
3
Anderson, James, 1739-1808
2
Betts, Edwin Morris, 1892-1958
2
Buist, Robert, 1805-1880
2
Christ, Johann Ludwig, 1739-1813
2
Christian, Frances Archer, Mrs
2
De Giorgi, Ferdinand,
2
Fell, Derek
2
Garden Club of Virginia
2
Germantown Horticultural Society (Philadelphia, Pa.)
2
Groening, G.
2
Guinther, John
2
Hitchcock, I. Irvine 1793-1868
2
Hoffman, Francis Arnold, 1822-1903,
2
M'Mahon, Bernard, 1775?-1816
2
Marshall, Charles, -1818
2
Maryland State Agricultural Society
2
Massie, Susanne Williams, Mrs
2
Musil, Ferdinand L.
2
Pack, Charles Lathrop, 1857-1937
2
Pennsylvania Historical and Museum Commission
2
Pennsylvania Horticultural Society (Philadelphia)
2
Pieniąz̊ek, Szczepan Antoni
2
Roberts, Edward P.
2
Rümpler, Th. 1817-1891
2
Sands, Samuel
2
Sands, William E.
2
Skinner, John S. 1788-1851
2
Smith, Emily, 1984-
2
Smith, Gideon B.
2
University of Pennsylvania. Morris Arboretum
2
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