Charles Spencer Crandall / H. A. Ross / Harold Clayton M. Case / John Benjamin Rice / Martin John Prucha / Paul Hubert Tracy / Robert Graham / Walter Lee Gaines / Wendell Holmes Tisdale / Wesley Pillsbury Flint / William Barbour Nevens / Chris Simeon Rhode / Clyde Evert Leighty / Frederick Alexander Davidson / Harry Alexis Harding / Ivan Bertrand Boughton / Jay Courtland Hackleman / Martin Luther Mosher / Oliver Ralph Overman / Walter Valentine Balduf / George Harlan Dungan / Hugh Fisher Hall

UIUC:30112019528493

Agriculture

Brayton Ladd Weaver / Carl Alfred Brandly / Deane G. Carter / E. E. Ormiston / Emil Wilhelm Lehmann / Gladys Josephine Ward / Grace Besselene Armstrong / Harry Paul Bateman / Helen Klaas / Jay Courtland Hackleman / Laurence Joseph Norton / Milton Dyer Farrar / Paul Hubert Tracy / Roscoe Raymond Snapp / Ruth Crawford Freeman / Sara I. Moyer / Victor Wendell Kelley / William Garfield Kammlade / Wesley Pillsbury Flint / Dorothy J. Iwig / Edwin Ivan Pilchard / Herbert Howard Alp / Jesse Sampson / Lee Adrian Somers / Lulu S. Black / Ralph Carroll Hay / Robert Graham / Ross Harrison Hurt / Sybil Woodruff / Wayne Elwin Domingo / T. F. Winburn

UIUC:30112038173032

4-H clubs

Charles Andrew Brown / Charles Bovett Sayre / Charles Leslie Stewart / Charles Spencer Crandall / Emil Wilhelm Lehmann / Frederick Charles Bauer / Harold Hanson Mitchell / Henry Perly Rusk / Jay Courtland Hackleman / John William Lloyd / Louie Henrie Smith / Tom Sherman Hamilton / Walter Lee Gaines / William Barbour Nevens / Arthur Maxwell Brunson / Arthur Moses Buswell / Horace Mead Newell / Lacey Fletcher Rickey / Roscoe Raymond Snapp / William Garfield Kammlade / William Leonidas Burlison / Lawrence Joseph Norton / Ogle Hesse Sears / Raymond Charles Kelleher

UIUC:30112019528550

Apples

Arthur Samuel Colby / H. A. Ross / Ivan Wright / Jay Courtland Hackleman / John William Lloyd / Juliet Lita Bane / Martin John Prucha / Warren Albert Ruth / William Anderson / James Marshall Brannon / Arthur Samuel Ambrose

UIUC:30112019531976

Agricultural credit

International Crop Improvement Association / Jay Courtland Hackleman

OCLC:622637718

International Crop Improvement Association

Jay Courtland Hackleman

OCLC:367391132

Agriculture

Charles Spencer Crandall / H. A. Ross / Harold Clayton M. Case / John Benjamin Rice / Martin John Prucha / Paul Hubert Tracy / Robert Graham / Walter Lee Gaines / Wendell Holmes Tisdale / Wesley Pillsbury Flint / William Barbour Nevens / Chris Simeon Rhode / Clyde Evert Leighty / Frederick Alexander Davidson / Harry Alexis Harding / Ivan Bertrand Boughton / Jay Courtland Hackleman / Martin Luther Mosher / Oliver Ralph Overman / Walter Valentine Balduf / George Harlan Dungan / Hugh Fisher Hall

UIUC:30112019528493

Agriculture

Jay Courtland Hackleman

UIUC:30112019539466

Agriculture

Albert Lemuel Whiting / Cyril George Hopkins / Frank Ashmore Pearson / H. A. Ross / Harold Hanson Mitchell / Harry Alexis Harding / Harry Warren Anderson / James Lloyd Edmonds / Martin John Prucha / Robert Stewart / Samuel Wilson Parr / Walter Frederick Handschin / Walter Lee Gaines / Wendell Holmes Tisdale / Wesley Pillsbury Flint / Wilbur Jerome Carmichael / Chris Simeon Rhode / Clyde Evert Leighty / Emil Rauchenstein / Frederick Alexander Davidson / Jay Courtland Hackleman / John Benjamin Rice / Thomas Everett Richmond / Warren Rippey Schoonover / William Garfield Kammlade / George Harlan Dungan / Hugh Fisher Hall / James Burton Andrews

UIUC:30112019529814

Agricultural productivity

Chalmers Woodruff Crawford / Harold Hanson Mitchell / Harriet Muriel Phillips / J. Albert Evans / Leslie Ellsworth Card / Wesley Pillsbury Flint / William Barbour Nevens / Frederick Charles Bauer / James Lloyd Edmonds / Jay Courtland Hackleman / Margia B. Haugh / Fairie Mallory

UIUC:30112065549211

Agriculture

Wesley Pillsbury Flint / Frederick Charles Bauer / Jay Courtland Hackleman

UIUC:30112054415127

Agriculture

International Crop Improvement Association

OCLC:448139445

Crop improvement

Jay Courtland Hackleman / Clyde Maurice Linsley

UIUC:30112019536553

Acreage allotments

Dwight Powell / Ernest De Witt Walker / Ernest Oliver Herreid / H. R. Kemmerer / John Henry Bigger / Margueritte Briggs / Murlin Ray Hodgell / Walter J. Wills / Burdet Heinemann / Howard Bliss Petty / Jay Courtland Hackleman

UIUC:30112019532172

Agricultural machinery

Ernest De Witt Walker / Jay Courtland Hackleman

UIUC:30112019538922

Agriculture

Benjamin Koehler / Charles Elmer Durst / Frederick Charles Bauer / Frederick Francis Weinard / John William Lloyd / Laurence Joseph Norton / Oliver Ralph Overman / Paul Hubert Tracy / Sleeter Bull / Victor Wendell Kelley / Walter August Huelsen / Wesley Pillsbury Flint / William Leonidas Burlison / Ben Bowen Wilson / Carl Otto Mohr / Harrison August Ruehe / Horace Mead Newell / James Ransom Holbert / Jay Courtland Hackleman / John Harwood Longwell / Merl Conrad Gillis / Orlando Ford Garrett / Samuel Wesley Decker / Fred Carl Olson / Ogle Hesse Sears

UIUC:30112019528584

Agricultural prices

Charles Andrew Brown / Charles Bovett Sayre / Charles Leslie Stewart / Charles Spencer Crandall / Emil Wilhelm Lehmann / Frederick Charles Bauer / Harold Hanson Mitchell / Henry Perly Rusk / Jay Courtland Hackleman / John William Lloyd / Louie Henrie Smith / Tom Sherman Hamilton / Walter Lee Gaines / William Barbour Nevens / Arthur Maxwell Brunson / Arthur Moses Buswell / Horace Mead Newell / Lacey Fletcher Rickey / Roscoe Raymond Snapp / William Garfield Kammlade / William Leonidas Burlison / Lawrence Joseph Norton / Ogle Hesse Sears / Raymond Charles Kelleher

UIUC:30112019528550

Apples

Clarence Henry Eckles / Claude Burton Hutchison / Frederick Blackmar Mumford / John Arden Ferguson / Luther Abraham Weaver / Merritt Finley Miller / Missouri

UIUC:30112048265935

Corn

Clyde Maurice Linsley / James Lloyd Edmonds / Jay Courtland Hackleman / Louie Henrie Smith / Ray Iris Shawl / Roland Willey Bartlett / Wesley Pillsbury Flint / William Barbour Nevens / Alvin Frederick Kuhlman / Chalmers Woodruff Crawford / John Henry Bigger / George Harlan Dungan

UIUC:30112019532040

Acreage allotments

Frederick Charles Bauer / George Harlan Dungan / Harry Warren Anderson / John Jacob Pieper / John William Lloyd / Laurence Joseph Norton / Paul Hubert Tracy / Robert Childers Ashby / Robert Graham / Victor Wendell Kelley / William Garfield Kammlade / William Leonidas Burlison / Ben Bowen Wilson / Everett A. Tunnicliff / Harrison August Ruehe / Horace Mead Newell / Jay Courtland Hackleman / Lucian Hart Strubinger / Wesley Pillsbury Flint / Frank Paul Sanmann / Ivan Bertrand Boughton / Ogle Hesse Sears

UIUC:30112056202135

Agricultural experiment stations

Harold Winford Hannah / John William Lloyd / Joseph Ackerman / Kenneth John Kadow / Maxwell Jay Dorsey / Paul Hubert Tracy / R. H. Wilcox / Walter August Huelsen / William Leonidas Burlison / Harold Clayton M. Case / Harry Warren Anderson / John Paschal McCollum / Laurence Joseph Norton / Stewart Lawrence Tuckey

UIUC:30112019528675

Agricultural credit

Frank Ashmore Pearson / H. A. Ross / John Benjamin Rice / Paul Hubert Tracy / Robert Graham / Walter Lee Gaines / Wendell Holmes Tisdale / Wesley Pillsbury Flint / Chris Simeon Rhode / Clyde Evert Leighty / Frederick Alexander Davidson / Ivan Bertrand Boughton / Jay Courtland Hackleman / Oliver Ralph Overman / Walter Valentine Balduf / George Harlan Dungan / Hugh Fisher Hall

OCLC:16894908

Buttermilk

Arthur Samuel Colby / H. A. Ross / Ivan Wright / Jay Courtland Hackleman / John William Lloyd / Juliet Lita Bane / Martin John Prucha / Warren Albert Ruth / William Anderson / James Marshall Brannon / Arthur Samuel Ambrose

UIUC:30112019531976

Agricultural credit

Harold Winford Hannah / John William Lloyd / Maxwell Jay Dorsey / Paul Hubert Tracy / Walter August Huelsen / William Leonidas Burlison / John Paschal McCollum / Joseph Ackerman / Stewart Lawrence Tuckey

UIUC:30112005768541

Corn

Chalmers Woodruff Crawford / Leslie Ellsworth Card / Wesley Pillsbury Flint / William Barbour Nevens / William Leonidas Burlison / James Lloyd Edmonds / Jay Courtland Hackleman / Frederick Charles Bauer

UIUC:30112019531992

Brucellosis in swine

Dwight Powell / Ernest De Witt Walker / Ernest Oliver Herreid / H. R. Kemmerer / John Henry Bigger / Murlin Ray Hodgell / Walter J. Wills / Burdet Heinemann / Howard Bliss Petty / Jay Courtland Hackleman

OCLC:17347503

Chinch-bugs

Charles Bovett Sayre / Charles Spencer Crandall / Emil Wilhelm Lehmann / Ernest Everett De Turk / Frederick Alexander Davidson / Frederick Charles Bauer / Frederick Francis Weinard / George Harlan Dungan / Harold Clayton M. Case / Jay Courtland Hackleman / John William Lloyd / Lacey Fletcher Rickey / Louie Henrie Smith / Tom Sherman Hamilton / Walter Lee Gaines / Arthur Maxwell Brunson / Arthur Moses Buswell / Horace Mead Newell / Philip Augustus Lehenbauer / Robert Cooke Ross / William Garfield Kammlade / William Leonidas Burlison / Harold Hanson Mitchell / Ogle Hesse Sears / Raymond Charles Kelleher / Robert Watt Stark

OCLC:16898668

Apples

B. F. Muirheid / Charles Michael Brown / Ernest De Witt Walker / Ernest Thompson Robbins / George T. Woods / Harold Stever Bryan / Harold Winford Hannah / Jay Courtland Hackleman / John Hubert Ramser / Wendell Bowers / Robert William Kleis / William Frank Purnell / Frank Winston Andrew

OCLC:17221465

Alfalfa

Arthur Samuel Colby / Benjamin Curran / Ernest Thompson Robbins / Grace Besselene Armstrong / Israel Park Blauser / John William Lloyd / Ray Iris Shawl / Wesley Pillsbury Flint / Benjamin Koehler / Frederick Charles Bauer / Harry Willis Anderson / Nathalie Agatha Vasold / Jay Courtland Hackleman

OCLC:17159613

Agricultural machinery