About
Gamma Sigma Delta International

Gamma Sigma Delta International is an honor society dedicated to recognizing your academic achievements and/or accomplishments as a student, faculty member, alumnus, or industry and university supporter. Your election to the Society is more than an honor. It is a challenge and an obligation to contribute to the understanding and furthering of agriculture and related sciences which are expanded to include, but are not limited to, forestry, natural resources, statistics, human ecology, and veterinary medicine.

The purposes of Gamma Sigma Delta International are to promote and to recognize achievements of individuals who excel. Membership in Gamma Sigma Delta International is often recognized by recruiters, colleagues and foreign and domestic governments as an indicator of exceptional academic and/or professional performance. No group of professionals has a more important task than those in agriculture and related sciences. By accepting membership in Gamma Sigma Delta International you can assist in keeping the world conscious of the importance of the vast agricultural complex.

Mission
Mission

To encourage high standards of scholarship and recognize excellence in agriculture and related sciences through honorary membership.

Vision
Vision

To be a globally recognized leader in honoring achievement, fostering leadership, and advancing agricultural sciences for the benefit of society.

Key
Highlights

Established in 1905
Established in 1905, formally organized as Gamma Sigma Delta International in 1913.
International honor society
International honor society with 50+ chapters across universities.
Recognizes top students
Recognizes top students (typically top academic performers) and distinguished professionals.
Prestigious awards including the Distinguished Achievement in Agriculture Award.
Active international foundation supporting scholarships and student development.

Key Objectives

  • Recognize academic and professional excellence.
  • Promote leadership and service in agriculture.
  • Support students, faculty, and professionals.
  • Foster collaboration across institutions and countries.
  • Advance agriculture and related sciences for societal benefit.

Leadership

Committed to strengthening chapters and fostering meaningful global impact.

Know all leaders
Te-Ming (Paul) Tseng, PhD
Te-Ming (Paul) Tseng, PhD
President
John Westra PhD 
John Westra PhD 
Treasurer / Past President
Shandrea Stallworth, PhD
Shandrea Stallworth, PhD
Secretary / Interim Strategic Communications Officer
Kelly Miller
Kelly Miller
Business Manager
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Benefits to you…

  • Recognition of your outstanding academic achievement
  • Recognition of achievements in your specialty field
  • Recognition of your achievements to graduate and professional schools, industry, universities and government
  • Expanded knowledge of agriculture and related sciences
  • Opportunity to participate and contribute to chapter activities
  • Eligibility for awards and scholarships at the chapter level if available
  • Making and sharing professional contacts Ia. Life-long international membership
  • Annual international newsletter

Historical Growth

Gamma Sigma Delta International began as a professional agricultural fraternity called Delta Theta Sigma at The Ohio State University, December 1, 1905, and maintained a chapter house.

Other chapters were installed at Iowa State (1907), Pennsylvania State College (1908), University of Missouri (1908), Oregon State College (1909), and Utah State College (1909), but all of these chapters adhered to an honorary plan and did not have chapter houses.

In 1913 Delta Theta Sigma at The Ohio State University, withdrew, maintained the name, and its chapter house. The name of the remaining organization was changed to Gamma Sigma Delta International and followed the honorary plan of operation. Later (1928) a chapter of Gamma Sigma Delta International was installed at Ohio State.

In 1915, the Honor Society of Agriculture was formed at the University of Minnesota. A movement was started early in 1916 to merge the two organizations, Gamma Sigma Delta International and Honor Society of Agriculture. A joint committee from both organizations met at the University of Minnesota, June 3, 1916, and reached tentative agreement on the merger. Anew constitution was drafted and ratified early in 1917.

The Honor Society of Agriculture, Gamma Sigma Delta International, became the official name. From 1917, Gamma Sigma Delta International has been strictly honorary. It became faculty governed and selected membership from juniors, seniors, graduate students, alumni, and faculty. Currently 52 chapters have been installed at universities throughout the United States, Puerto Rico, the Philippines, and Honduras.

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