Derek and Mark's adventures abroad included eco safaris, animal sanctuaries, and other efforts at biological conservation. By donating to the National Geographic Society, you are supporting Derek's belief in the importance of all life and the love of nature. About National Geographic Society: "The National Geographic Society is a nonprofit organization committed to exploring and protecting our planet. We rely on the generosity of individuals like YOU to help us push the boundaries of knowledge through our work in conservation, discovery, education, and cultural preservation. When you donate to the National Geographic Society—together we change the world."

Lambda Legal and private counsel represented the plaintiffs in the Obergefell v. Hodges case, which culminated in the legalization of same-sex marriage in the nation. Without their efforts, Derek and Mark could not share their special day with you. By donating to Lamdba Legal, you support Derek and Mark's union and the continued fight for equality. About Lambda Legal: "Lambda Legal was founded in 1973 as the nation’s first legal organization dedicated to achieving full equality for lesbian and gay people. ... We make the case for equality in the nation’s courts and in the court of public opinion. We make a big impact in people's lives by changing laws, policies and ideas. Until we achieve full equality under the law in every state in this country, we will keep fighting and moving history forward."

Derek and Mark will travel to Bali and Japan for their honeymoon. You could contribute to The Nature Conservancy's Carbon Offset Program in order to offset the carbon footprint made by them in their travel to and from their destinations. Your voluntary contribution to The Nature Conservancy’s carbon offset program will help fund forest conservation, improved forest management or reforestation projects that produce measurable climate benefits. Projects in this program will help reduce or slow climate change and protect habitats and the natural services they provide. About The Nature Conservancy: The mission of The Nature Conservancy is to conserve the lands and waters on which all life depends.