Beveridge & Diamond
Henry L. Diamond photo

Henry L. Diamond


  • Vanderbilt University (B.A., 1954)
  • Georgetown University (LL.B., 1959)

Henry Diamond was Senior Counsel and a founder of Beveridge & Diamond. 

Mr. Diamond began his environmental and resource conservation career upon meeting Laurance S. Rockefeller and becoming a key advisor on parks, recreation, and outdoor issues. This association led to his service in 1962 as editor of the report of the Outdoor Recreation Resources Review Commission for President John F. Kennedy. This seminal report led to the creation of the Land and Water Conservation Fund, the Wilderness Act, and the national system of wild and scenic rivers.

Mr. Diamond also served as Executive Director of the influential 1965 White House Conference on Natural Beauty, which Mr. Rockefeller chaired. He served as a member and then chairman of the President's Citizens Advisory Committees on Recreation and Natural Beauty and Environmental Quality. He was also a member of the Long Island State Park Commission and the Commission on the Future of the Adirondacks. 

In 1970, New York Governor Nelson Rockefeller created the New York State Department of Environmental Conservation (DEC), combining all resource management and antipollution programs into the nation's first environmental department. Governor Rockefeller named Mr. Diamond as the first DEC Commissioner. As Commissioner, he was instrumental in developing the Environmental Quality Bond Act of 1972 and securing its passage by the state legislature and approval by the voters. Mr. Diamond led a 533-mile bicycle ride across New York State, to promote the $1.2 billion environmental bond issue that provided for water and air pollution control and land acquisition.

President Johnson named Mr. Diamond as a member of the Citizen's Advisory Committee on Youth Opportunity. President Nixon appointed him a member of the President's Advisory Committee on Environmental Quality, and he became Chairman of that group in 1973.

From 1974 to 1975,Mr.Diamond was the Executive Director of the Commission on Critical Choices for Americans, Chaired by Nelson Rockefeller. Composed of 43 prominent Americans, including Congressional leaders, that Commission’s, identified critical policy choices available to the American people.

Throughout his decades of private practice with Beveridge & Diamond, Mr. Diamond remained a tireless advocate for land and water conservation. He served on more than 30 boards and commissions, including Resources for the Future, the Environmental Law Institute, The Woodstock Foundation, The Jackson Hole Preserve, Inc., and Americans for Our Heritage and Recreation. In 1991, he chaired the National Park Service 75th Anniversary Conference which produced the influential Vail Report, and co-authored (with Pat Noonan) the 1996 Sustainable Use of Land Project report, Land Use In America. He co-chaired the bipartisan Outdoor Resources Review Group, sponsored by Senators Jeff Bingaman and Lamar Alexander. The Group's report, Great Outdoors America, served as a catalyst for the President's America's Great Outdoors initiative. 

Mr. Diamond received numerous honors and awards, including the Environmental Law Institute’s Environmental Achievement Award (2015), the U.S. Department of Interior's Lifetime Conservation Achievement Award (2011), and the Pugsley Medal of the American Academy for Park & Recreation Administration (2008).