Benson H. Paul / C. A. Plaskett / Charles Nicholas Ainslie / Clarence Elbert Clement / Dorothy Nickerson / Edward Mackay Chace / Emilio Pepe Meinecke / Franklin Thomas Cowan / George G. Ainslie / James Johnson / James Stanley Mathewson / John A. Newlin / Joseph Hubert Priestley / Laurence Victor Teesdale / Lewis Bertie Olmstead / Lorraine Joseph Markwardt / Louis Guy Michael / Oliver I. Snapp / Ralph Wylie Frey / Raphael Zon / Ruric Creegan Roark / Samuel Trask Dana / Whitney Coombs / William Gustavus Wahlenberg / William White / C. S. Trimble / H. S. Swingle / Calvin Grant Church / Charles F. Swingle / Ira Doup Clarke / John Martin Gahagan / Lyle Thomas Alexander / R. D. Garver / R. T. Cotton / Harry Lawrence Wilson / Howard E. Middleton

OSU:32435027441294

Agriculture

John Robert Parker

UFL:31262087213806

Grasshoppers

Arthur Truman Semple / Brittain Bragunier Robinson / C. A. Magoon / David Francis Costello / Eugene Amos Hollowell / Franklin Thomas Cowan / Helen Shepard Holbrook / Howard Wilfred Johnson / J. E. Dudley / James Herbert Beattie / James Robert McCalmont / John Frederick Preston / John L. Etchells / John Wesley Rockey / Joseph Frank Pechanec / Maurice S. Shahan / Roland McKee / Sears Polydore Doolittle / Stanley Ward McBirney / Thomas Ray Stanton / Verne Elbert Davison / Albert Victor Krewatch / Benjamin Koehler / Dean Humboldt Rose / Elmer Snyder / Franklin Arthur Coffman / George Edgar Ritchey / George Stewart / George Thomas Turner / Horace Jennings Shipman / Ivan D. Jones / John Andrew Johnson / Joseph Winslow Simons / Mason August Hein / T. E. Bronson / Ward Tomlinson Huffman / Claude Wakeland

CUB:U183021566100

Alfalfa

Theodore Peter Dykstra / Alice Louise Robert / Axel Langvad Andersen / Berten Wendell Allred / Charles Wesley Gantt / Clarence Dinsmore Stein / Claude Kedzie Shedd / F. M. Grant / Franklin Thomas Cowan / Fred Charles Simmons / Howard Wilfred Johnson / I. E. Stokes / John Lewis Creech / L. F. Locke / R. W. Leukel / Robert S. Rummell / Ross Calvin Thompson / Thomas Lotti / Tom Dale / Verne Elbert Davison / William John Reid / William Joseph Sando / William Solomon Porte / Rufus F. Dowdle / Claude Carl Wakeland / Clark E. Holscher / Donald William Chamberlain / Floyd Franklin Smith / Frank P. Cuthbert / Grover F. Brown / Otto H. Coleman / Sears Polydore Doolittle / V. F. Tapke / Walton Monroe Nixon / Walter Oliver Hawley / D. J. Caffrey / Jack L. Dean / Samuel George Lehman

CUB:U183021566168

Agricultural conservation

Franklin Thomas Cowan / Horace Jennings Shipman

UIUC:30112019273116

Anabrus simplex

Carl Rohwer / David Wield Robertson / Earl Douglass / Franklin Thomas Cowan / George Anderson Beach / George Warren Deming / James C. Foster / Mark Alfred Barmore / Robert Gardner / Roy Douglas Hockensmith / Carey Eugene Vail / James Bennett Goodwin / Justice Conrad Ward / Alvin Kezer / Joseph William Tobiska

UIUC:30112019449617

Agriculture

Franklin Thomas Cowan / Claude Carl Wakeland

IND:30000090108345

Anabrus

Franklin Thomas Cowan / Claude Carl Wakeland / Horace Jennings Shipman

UIUC:30112019289070

Agriculture

United States. Department of Agriculture

OCLC:631402191

Frank T. Cowan

OCLC:182938750

Colorado. Office of the State Entomologist / F.T. Cowan

OCLC:631938257

Franklin Thomas Cowan

OCLC:9609948

Locusts

Alpha Cornelius Johnson / Arthur Challen Baker / Charles Ranger Enlow / Clifford E. Hood / Clyde Eugene Asbury / Don Juan Slater / Everett Oertel / Franklin Thomas Cowan / Fred Reuel Jones / Freeman Weiss / H. O. Hetzer / Harry Willis Allen / J. L. Weimer / James Ellsworth Kraus / John Lee Schwendiman / John Selden Cole / Lynn H. Dawsey / Oscar Roland Mathews / R. R. Graves / Robert Claude Wright / Thomas Ray Stanton / Victor Sylvan Jensen / W. R. Barger / William Franklin Wight / William Vincent Lambert / Bertie Frank Barnes / Charles Edward Behre / Cyril Oliver Bratley / Floyd Franklin Smith / Frederick Francis McKenzie / G. J. Haeussler / Horace Jennings Shipman / Arnold Orlando Benson / J. K. Holloway / John Henry Zeller

LCCN:agr40000100

Alfalfa

Eugene Amos Hollowell / Franklin Thomas Cowan / James Robert McCalmont / John Lincoln Etchells / Sears Polydore Doolittle / Stanley Ward McBirney / Claude Carl Wakeland / Ivan Dunlavy Jones / Horace Jennings Shipman

OCLC:14686333

Alfalfa

Arthur Truman Semple / Brittain Bragunier Robinson / C. A. Magoon / David Francis Costello / Eugene Amos Hollowell / Franklin Thomas Cowan / Helen Shepard Holbrook / Howard Wilfred Johnson / J. E. Dudley / James Herbert Beattie / James Robert McCalmont / John Frederick Preston / John L. Etchells / John Wesley Rockey / Joseph Frank Pechanec / Maurice S. Shahan / Roland McKee / Sears Polydore Doolittle / Stanley Ward McBirney / Thomas Ray Stanton / Verne Elbert Davison / Albert Victor Krewatch / Benjamin Koehler / Dean Humboldt Rose / Elmer Snyder / Franklin Arthur Coffman / George Edgar Ritchey / George Stewart / George Thomas Turner / Horace Jennings Shipman / Ivan D. Jones / John Andrew Johnson / Joseph Winslow Simons / Mason August Hein / T. E. Bronson / Ward T. Huffman / Claude Wakeland

LCCN:agr44000021

Alfalfa

Franklin Thomas Cowan

OCLC:80370155

Locusts

Franklin Thomas Cowan / Colorado. Office of the State Entomologist

OCLC:462873609

Agricultural pests

Benson H. Paul / C. A. Plaskett / Charles Nicolas Ainslie / Dorothy Nickerson / Edward Mackay Chace / Emilio Pepe Michael Meinecke / Franklin Thomas Cowan / George G. Ainslie / James Johnson (agriculturist.) / James Stanley Mathewson / John A. Newlin / Joseph Hubert Priestley / Laurence Victor Teesdale / Lewis Bertie Olmstead / Lorraine Joseph Markwardt / Louis Guy Michael / Oliver I. Snapp / Ralph Wylie Frey / Raphael Zon / Ruric Creegan Roark / Samuel Trask Dana / Whitney Coombs / William Gustavus Wahlenberg / William White / C. S. Trimble / Calvin Grant Church / Charles F. Swingle / H. S. Swingle / Ira Doup Clarke / John Martin Gahagan / Lyle Thomas Alexander / R. D. Garver / R. T. Cotton / Harry Lawrence Wilson / Howard E. Middleton

LCCN:agr30000709

Agriculture

Franklin Thomas Cowan / Claude Carl Wakeland

OCLC:316255169

Franklin Thomas Cowan / Horace Jennings Shipman / Claude Carl Wakeland

OCLC:15140847

Anabrus

Franklin Thomas Cowan

OCLC:23661827

Locusts

Colorado. Office of the State Entomologist / Franklin Thomas Cowan / Sam Cornelius McCampbell

OCLC:462148142

Anabrus simplex

Franklin Thomas Cowan / Claude Carl Wakeland

OCLC:15547659

Anabrus

F. T. Cowan / Claude Wakeland

OCLC:320396690

Anabrus

Franklin Thomas Cowan / Colorado. Office of the State Entomologist

OCLC:462813923

Anabrus simplex

Arthur Truman Semple / Brittain Bragunier Robinson / C. A. Magoon / David Francis Costello / Eugene Amos Hollowell / Franklin Thomas Cowan / Helen Shepard Holbrook / Howard Wilfred Johnson / J. E. Dudley / James Herbert Beattie / James Robert McCalmont / John Frederick Preston / John L. Etchells / John Wesley Rockey / Joseph Frank Pechanec / Maurice S. Shahan / Roland McKee / Sears Polydore Doolittle / Stanley Ward McBirney / Thomas Ray Stanton / Verne Elbert Davison / Albert Victor Krewatch / Benjamin Koehler / Dean Humboldt Rose / Elmer Snyder / Franklin Arthur Coffman / George Edgar Ritchey / George Stewart / George Thomas Turner / Horace Jennings Shipman / Ivan D. Jones / John Andrew Johnson / Joseph Winslow Simons / Mason August Hein / T. E. Bronson / Ward Tomlinson Huffman / Claude Wakeland

CUB:U183021566100

Alfalfa

Theodore Peter Dykstra / Alice Louise Robert / Axel Langvad Andersen / Berten Wendell Allred / Charles Wesley Gantt / Clarence Dinsmore Stein / Claude Kedzie Shedd / F. M. Grant / Franklin Thomas Cowan / Fred Charles Simmons / Howard Wilfred Johnson / I. E. Stokes / John Lewis Creech / L. F. Locke / R. W. Leukel / Robert S. Rummell / Ross Calvin Thompson / Thomas Lotti / Tom Dale / Verne Elbert Davison / William John Reid / William Joseph Sando / William Solomon Porte / Rufus F. Dowdle / Claude Carl Wakeland / Clark E. Holscher / Donald William Chamberlain / Floyd Franklin Smith / Frank P. Cuthbert / Grover F. Brown / Otto H. Coleman / Sears Polydore Doolittle / V. F. Tapke / Walton Monroe Nixon / Walter Oliver Hawley / D. J. Caffrey / Jack L. Dean / Samuel George Lehman

CUB:U183021566168

Agricultural conservation

Benson H. Paul / C. A. Plaskett / Charles Nicholas Ainslie / Clarence Elbert Clement / Dorothy Nickerson / Edward Mackay Chace / Emilio Pepe Meinecke / Franklin Thomas Cowan / George G. Ainslie / James Johnson / James Stanley Mathewson / John A. Newlin / Joseph Hubert Priestley / Laurence Victor Teesdale / Lewis Bertie Olmstead / Lorraine Joseph Markwardt / Louis Guy Michael / Oliver I. Snapp / Ralph Wylie Frey / Raphael Zon / Ruric Creegan Roark / Samuel Trask Dana / Whitney Coombs / William Gustavus Wahlenberg / William White / C. S. Trimble / H. S. Swingle / Calvin Grant Church / Charles F. Swingle / Ira Doup Clarke / John Martin Gahagan / Lyle Thomas Alexander / R. D. Garver / R. T. Cotton / Harry Lawrence Wilson / Howard E. Middleton

OSU:32435027441294

Agriculture

Franklin Ellis

UOM:49015003092260

Genesee County (Mich.)

Franklin Thomas Cowan / Claude Carl Wakeland

IND:30000090108345

Anabrus