• 11 Photos, Drawings, Prints

• 4 Central Valley Project (Calif.)
• 2 Colorado-Big Thompson Project (U.S.)
• 2 Gonzalez, Xavier, 1898-1993
• 2 Magafan, Ethel, 1915 or 1916-1993
• 2 Peterson, Roland
• 2 Sun River Irrigation Project (U.S.)
• 1 D'Arcangelo, Allan, 1930-1998
• 1 Edwards, Ethel
• 1 Hydroelectric generators
• 1 Jackson, Billy Morrow
• 1 McCoy, John W
• 1 McCoy, John W., 1910-1989
• 1 Salt River Project

• 2 Gonzalez, Xavier, 1898-1993
• 2 Magafan, Ethel, 1915 or 1916-1993
• 2 Peterson, Roland
• 1 D'Arcangelo, Allan, 1930-1998
• 1 Edwards, Ethel
• 1 Jackson, Billy Morrow
• 1 McCoy, John W
• 1 McCoy, John W., 1910-1989

• 11 English

• 5 California
• 3 Colorado
• 2 Shasta
• 1 Arizona
• 1 Big Thompson River Valley
• 1 Montana

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