Photograph of four UNIDENTIFIED workers standing on and near a wooden bridge that will be replaced with an earth fill and drop inlet. The back of the photograph proclaims, "Site for drop inlet. This bridge will be replaced by an earth fill. To be followed with later picture. Furthermore, four UNIDENTIFIED workers are on and near the bridge."

Photograph of Lowell Caskey and Walter Hart discussing and posing with organic matter and soil fertility on the Lowell Caskey Farm. The Lowell Caskey Farm, according to the photograph, has the oldest vetch planting in the country due to his crop rotation of vetch since 1936. People shown in photo go as followed from left to right: 1. Lowell Caskey, 2. Walter Hart. The back of the photograph proclaims, "Lowell Caskey and Walter Hart discussing organic matter and soil fertility. This field has had a crop of vetch in rotation every year since 1936, the oldest vetch planting in the country."

Photograph of irrigated cotton. Cotton irrigated with water stored in Site 28, Calvary watershed. Small siphon tubes are used because of short runs. Bob Wright, watershed Conservationist, is in the picture. OK-1443-9.

Photograph of irrigated cotton. Cotton irrigated with water stored in Site 28, Calvary watershed. Small siphon tubes are used because of short runs. Bob Wright, watershed Conservationist, is in the picture. OK-1443-9.