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Thomas Charles
Hope
University of Glasgow, University of Edinburgh (Neurotree)

James
Woodhouse
Penn (Chemistry Tree)

Robert
Hare
Penn (Neurotree)


Benjamin
Silliman, Sr.
Yale (Chemistry Tree)


James Dwight
Dana
Yale (Terrestrial Ecology Tree)


Edward Thomson
Nelson
Ohio Wesleyan (Terrestrial Ecology Tree)

John Merle
Coulter
Chicago
(Options)

Charles Joseph
Chamberlain
Chicago (Plant Biology Tree)

Robert Bradford
Wylie
University of Iowa (Evolution Tree)

John Nathan
Martin
Iowa State (Plant Biology Tree)

Paul Bigelow
Sears
Yale (Terrestrial Ecology Tree)


Ralph Works
Chaney
UC Berkeley (Geotree)

May Theilgaard
Watts
(Terrestrial Ecology Tree)

George W.
Martin
University of Iowa, Iowa City, IA (Evolution Tree)


William Skinner
Cooper
UMN (Terrestrial Ecology Tree)

George Damon
Fuller
Chicago (Terrestrial Ecology Tree)

George Burton
Rigg
University of Washington (Plant Biology Tree)

Arthur G.
Vestal
UIUC (Terrestrial Ecology Tree)

Arthur Laurence
Bakke
Iowa State (Plant Biology Tree)

Paul Bigelow
Sears
Yale (Terrestrial Ecology Tree)

Walter Pace
Cottam
University of Utah (Terrestrial Ecology Tree)

Mary Minerva
Steagall
Southern Illinois University (Terrestrial Ecology Tree)

Stanley A.
Cain
UC Santa Cruz (Terrestrial Ecology Tree)

Harriet George
Barclay
University of Tulsa (Terrestrial Ecology Tree)

Elbert L.
Little
USDA Forest Service (Terrestrial Ecology Tree)

George E.
Nichols
Yale (Terrestrial Ecology Tree)

James Bertram
Overton
UW Madison (Plant Biology Tree)

James Geere
Dickson
U.S. Department of Agriculture (Plant Biology Tree)

William Jesse Goad
Land
Chicago (Plant Biology Tree)

Winfield Scott
Dudgeon
Ewing Christian College (Plant Biology Tree)

Robert Bradford
Wylie
University of Iowa (Evolution Tree)

Gerald Webber
Prescott
Michigan State (Evolution Tree)

William H.
Crocker
Chicago (Terrestrial Ecology Tree)

Charles Orval
Appleman
University of Maryland (Chemistry Tree)

Sophia H.
Eckerson
Chicago (Terrestrial Ecology Tree)

George Burton
Rigg
University of Washington (Plant Biology Tree)

Charles Albert
Shull
Chicago (Terrestrial Ecology Tree)

George K.K.
Link
Chicago (Plant Biology Tree)

Ezra Jacob
Kraus
UW Madison (Terrestrial Ecology Tree)

Thomas Guthrie
Phillips
Ohio State (Plant Biology Tree)

Homer C.
Sampson
Ohio State (Terrestrial Ecology Tree)

John James
Willaman
UMN (Chemistry Tree)

John
Woodard
Chicago (Chemistry Tree)

Scott Verne
Eaton
Chicago (Plant Biology Tree)

Reginald Ruggles
Gates
Chicago (Evolution Tree)

David Guthrie
Catcheside
Cambridge (Evolution Tree)

Lester W.
Sharp
Cornell (DevTree)

Lowell Fitz
Randolph
U.S. Department of Agriculture (Plant Biology Tree)

Barbara
McClintock
University of Missouri, Cold Spring Harbor Laboratory (FlyTree)

George Wells
Beadle
Caltech (FlyTree)

Loren Clifford
Petry
Cornell (Geotree)

Harlan Parker
Banks
Cornell (Geotree)

John Nathan
Martin
Iowa State (Plant Biology Tree)

Edward Franklin
Castetter
Univ. of New Mexico (Plant Biology Tree)

John Theodore
Buchholz
UIUC (Plant Biology Tree)

James Morton
Schopf
U.S. Geological Survey (Geotree)

Martin
Gibbs
Brandeis (Plant Biology Tree)

John CoulterX