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- Waterhouse, Benjamin, 1754-1846
- Waterhouse, Charles Owen, 1843-1917
- Waterhouse, D. F.
- Waterhouse, David R
- Waterhouse, Frederick H
- Waterhouse, Frederick Herschel, 1845-1919
- Waterhouse, G. R. (George Robert), 1810-1888
- Waterhouse, Gustavus A., 1877-1950
- Waterhouse, H
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- Waterhouse, J. H. (Janet H.)
- Waterhouse, J. Stallard
- Waterhouse, James
- Waterhouse, John T
- Waterhouse, L L
- Waterhouse, Maurice
- Waterhouse, W. K.
- Waterhouse, Walter Lawry
- Waterloo Bulb Farms.
- Waterloo, Maarten J.
- Waterlot, G
- Waterlow and Sons,
- Waterman, Allyn J. (Allyn Jay), 1902-
- Waterman, Alma M. (Alma May), 1893-
- Waterman, Catharine H. (Catharine Harbeson), 1812-
- Waterman, George Arthur,
- Waterman, Harriet Cutler, 1895-
- Waterman, Jane Margaret, 1958-
- Waterman, Kalisi
- Waterman, Larry Wayne.
- Waterman, T. T. (Thomas Talbot), 1885-1936
- Waterman, Talbot H. (Talbot Howe), 1914-2010
- Waterman, Warren Gookin, 1872-1952
- Watermann, Lena Yasmin
- Watermolen, Dreux J.
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- Waters, Bernard.
- Waters, Campbell Easter, 1872-1955
- Waters, Cathy
- Waters, Dana L.
- Waters, Dennis P.
- Waters, Edward S.,
- Waters, Elizabeth R
- Waters, G. Thomas
- Waters, Gifford J.
- Waters, Gregory J.
- Waters, Henry Jackson, 1865-1925
- Waters, Isobel
- Waters, J. R.
- Waters, James A.
- Waters, James.
- Waters, Jonathan M. (Jonathan Michael)
- Waters, Julie
- Waters, Nigel
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- Waters, Thomas Franklin, 1851-1919
- Waters, Virginia L.
- Waters, W. G. (William George), 1844-1928
- Waters, W. George.
- Waters, William E., 1922-
- Waterschoot van der Gracht, W. A. J. M. van (Willem Anton Joseph Maria), 1873-1943
- Watershed Research Workshop Chesapeake Bay Center for Environmental Studies) 1977-
- Watershed Science Institute (U.S.)
- Waterson, Berlin & Snyder Co.
- Waterson, John, 1656
- Waterstock
- Waterston, C. D.
- Waterston, James
- Waterstradt, John
- Waterton, Charles, 1782-1865
- Waterway, Marcia J
- Waterways Experiment Station (U.S.)
- Waterways Experiment Station (U.S.)
- Waterways Experiment Station (U.S.).
- Waterworth, Rebeccah
- Waterworth, Samantha
- Waterworth, Y.
- Watetu, Wilson Nderitu
- Watford Natural History Society and Hertfordshire Field Club.
- Wathen, George Henry
- Wathen, M. L.
- Wathen, William Henry
- Wati, Richa
- Watiroyram, Santi
- Watkin, E L J
- Watkin, Harold.
- Watkins & Locke (Firm)
- Watkins & Simpson, Ltd.
- Watkins Nurseries.
- Watkins, A. F.
- Watkins, B. J.,
- Watkins, Barry
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- Watkins, Elise.
- Watkins, G.
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- Watkins, James Thomas, 1953-
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- Watkins, Owen.
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- Watkins, Thomas.
- Watkins, W. G.
- Watkins, W. G.
- Watkins, W., active 1823-1831
- Watkins, Watkin James Yuille Strang, 1869-
- Watkins, William A.
- Watkins, William D.
- Watkins-Colwell, Gregory J
- Watkinson, Andrew
- Watkinson, Christopher
- Watkinson, Douglas A.
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- Watling, Les
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- Watling, Roy.
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- Watrous, Clarence H.
- Watrous, Larry
- Watrous, Larry E
- Watrous, Larry Elden.
- Watrous, Roberta C. (Roberta Chapman), 1904-
- Wats, Gilbert, 1657
- Watsham, A.
- Watson & Hazell,
- Watson & Schull
- Watson Botanical Exchange Club.
- Watson, Adam
- Watson, Alexander, gardener.
- Watson, Alfred Edward Thomas, 1849-1922
- Watson, Allan
- Watson, Amelia M. (Amelia Montague),
- Watson, Anna T.
- Watson, Anya
- Watson, Arnold T
- Watson, Arthur C
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- Watson, B. M.
- Watson, Benjamin M., Jr.
- Watson, Benjamin Marston
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- Watson, D. Robert A.
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- Watson, David Meredith Seares, 1886-1973
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- Watson, E. B. 1864-1926
- Watson, E. M.
- Watson, E. Y.
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- Watson, Edward Hahn, 1902-
- Watson, Edward Yerbury
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- Watson, Ian
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- Watson, J. Ray
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- Watson, James
- Watson, James A. S. (James Anderson Scott), 1889-1966
- Watson, James C
- Watson, James D,
- Watson, James Gilbert, 1889-
- Watson, James W.
- Watson, James, 1845-
- Watson, Jane C.
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- Watson, Jeanette E.
- Watson, Jeanette W
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- Watson, John
- Watson, John
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- Watson, John, F.L.S., 1928
- Watson, John.
- Watson, Joseph E.
- Watson, Kathleen
- Watson, Keith J
- Watson, L. Cynthia
- Watson, Laura G
- Watson, Les
- Watson, Linda E.
- Watson, M. Carolyn
- Watson, Malcolm
- Watson, Margaret E