A 16th-century Spanish conquistador known for his expedition in search of the legendary Seven Cities of Gold. His journey marked the first European sighting of locales such as the Grand Canyon and the Colorado River.

Led California as governor starting in 1959, promoting ambitious water projects like the State Water Project. Known for his belief in developing water resources at any cost to support growth.

A prominent Commissioner of the Bureau of Reclamation, known for his strong personality and commitment to large-scale water projects. His career was marked by both significant achievements and controversies.

An influential figure in California water politics, noted for his role in acquiring water rights for Los Angeles. He was a key player behind the construction of the aqueduct from Owens Valley.

A major newspaper publisher in Los Angeles who used his platform to influence public opinion on water issues. His actions helped build support for the aqueduct project and increase his own wealth.

A pioneering explorer and scientist who led historic expeditions through the Grand Canyon. He was an early advocate for realistic approaches to settlement and agriculture in the arid American West.

An engineer associated with California water projects who played a dual role in Owens Valley water negotiations. His actions supported Los Angeles's efforts to secure water rights for its expansion.

Commissioner of Reclamation under President Franklin Roosevelt, known for his atypical background and passion for dam construction. His tenure saw the realization of numerous water projects.

An Irish immigrant and self-taught engineer instrumental in designing the aqueduct that supplied Los Angeles with water. He was also responsible for the Saint Francis Dam, whose failure had tragic consequences.