ATP International Series | International Monetary Fund | International Red Cross and Red Crescent Movement | ATP International Series Gold | International Space Station | Amnesty International | International Olympic Committee | BirdLife International | International Finance Corporation | International Organization for Standardization | International Telecommunication Union | International Criminal Court | One Day International | International Nonproprietary Name | International Labour Organization | International Civil Aviation Organization | International Boxing Federation | Toronto International Film Festival | International Atomic Energy Agency | International Maritime Organization | International Development Association | John F. Kennedy International Airport | Los Angeles International Airport | International Bank for Reconstruction and Development | International Court of Justice | International Fund for Agricultural Development | Rotary International | Marriott International | International Air Transport Association | Woodrow Wilson International Center for Scholars |
Thomas was active in civic and community affairs, including the Masonic lodge, the Cheyenne Kiwanis International, and the United Way of Laramie County.
He advised governors and congressmen, spoke at every Kiwanis and Optimist Club within a day’s drive of Ruston and still found time daily to spend with his friends Thoreau and Tennyson, Pope and Emerson.
Fennell is an Honorary Member of the Royal Canadian Legion Branch 15, an Honorary Member of the Brampton Kiwanis and Zonta clubs, and has been honoured with Rotary International's Paul Harris Fellowship.
The California-Nevada-Hawaii District Key Club International, Cali-Nev-Ha, or simply CNHDKCI is a governing body of Key Club International, a youth sponsored community service organization of Kiwanis International, local Kiwanis clubs and school districts across the state.