Photograph of National Watershed Congress. A singing group entertains the National Watershed Congress, 1966, at Oklahoma City, OK. TRC-99-12.

Photograph of Gordon K. Zimmerman, right, introduces Mr. Mrs. Marvin C. Emerson at a banquet meeting of the National Watershed Congress, 1966, Oklahoma City, OK. TRC-99-5.

Photograph of Watershed Congress, 1966, Oklahoma City, OK. Registrants at the Congress with Oklahoma Governor Henry Bellmon second from right. TRC-100-12.

Photograph of Watershed Congress, 1966, Oklahoma City, OK. Wayne Liles, farm Editor, KWTV (Channel 9), Oklahoma City, left, and Oklahoma City, left, and Oklahoma Senator, Fred Harris. TRC-100-1.

Photograph of Watershed Congress, 1966, Oklahoma City, OK. Left: Oklahoma's Governor Henry Bellmon and Marvin G. Emerson, Director, Oklahoma State Soil Conservation Board before the Board's watershed display. TRC-100-9.

Photograph of Watershed Congress, 1966, Oklahoma City, OK. Left: Oklahoma's Governor Henry Bellmon and Marvin G. Emerson, Director, Oklahoma State Soil Conservation Board before the Board's watershed display. TRC-100-8.

Photograph of Leo P. Harvey, Pleasant Grove, Utah, receives the National Watershed of the Year plaque for American Fork-Dry Creek Waershed. James B. Craig, of the American Forestry Association, Washington DC, makes the presentation. National Watershed Congress, 1966, Oklahoma City, OK. TRC-99-7.

Photograph of Leon J. Sisk, Field Secretary, Georgia Soil and Water Conservation Committee, speaks at the National Watershed Congress, 1966, Oklahoma City, OK. TRC-99-6.

Photograph of James B. Craig, American Forestry Association, Washington DC (left) presents Watershed Man of the Year plaque to Elmer L. Smith, Catepillar Tractor Company, Peoria, Illinois. National Watershed Congress, 1966, Oklahoma City, OK. TRC-99-16.

Photograph of Henry P. Caufiled Jr., Executive Director, federal Water Resources Council, Washington DC, speaks to the National Watershed Congress, 1966, Oklahoma City. TRC 99-2.

Photograph of the Watershed Congress, 1966, Oklahoma City, OK. Registrants at Congress with Oklahoma Governor, Henry Bellmon, at right. TRC-100-11.

Photograph of Watershed Congress, 1966, Oklahoma City, OK. Dave Stewart of the National Association of Conservation Districts (NACD) at the registration desk. TRC-100-3.

Photograph of Watershed Congress, 1966, Oklahoma City, OK. Russell Pierson, Farm Editor, WKY-TV [then channel 4] and radio, Oklahoma City, left, and Senator Fred Harris of Oklahoma. TRC-100-2.

Photograph of Watershed Congress, 1966, Oklahoma City, OK. Registrants at the Congress with Oklahoma Governor Henry Bellmon at right. TRC-100-10.

Photograph of Watershed Congress, 1966, Oklahoma City, OK. Duncan's watershed display. TRC-100-7.

Photograph of Watershed Congress, 1966, Oklahoma City, OK. Hollir R. Williams, Soil Conservation Service (SCS) Deputy Administrator for Watersheds, addresses banquet meeting of the National Watershed Congress, 1966, Oklahoma City, OK. TRC-99-1.

Photograph of Gordon Zimmerman, Executive Secretary, NACD, Washington, presides at the meeting of National Watershed Congress, 1966, Oklahoma City, OK. TRC-99-4.

Photograph of Bill Sharpe standing between two fields, which the right side received five tons per acre of applied gypsum, while the left side did not receive any gypsum. This field is near Will Rogers Air Port in Oklahoma City. The back of the photograph proclaims, "Gypsum Application. Bill Sharpe in photo. Portion of land to left of Bill did not have Gypsum applied. One on right had nearly 5 tons per acre. Before the application this portion of field would not grow anything. The portion where gypsum was not applied was not that bad."

Photograph of Lundy standing inside a wildlife area developed on a hillside slope. Austrian pines planted in 1950.

Photograph of Connelly standing at the edge of the Blackjacks that covered 90% of his farm when he started clearing in 1951.

Photograph of Charley Connelly standing next to his dairy herd.

Photograph of Charley Connelly standing next to his dairy herd.

Photograph of a dairy herd.

Photograph of Charley Connelly's dairy herd.