1937
Ventura County (Calif.). Office of the County Surveyor.
1:180k
1888
Rowan, Valentine James
1932
Rockhold, J. E. (John Ellsworth)
1:108k
1941
Jones, Alfred
1:117k
1900
Los Angeles County (Calif.). County Surveyor.
1935
Jones, Alfred
1:120k
1939
Jones, Alfred
1:120k
1922
Chadwick, J. P.
1932
Ventura (Calif.). Office of the City Engineer.
1939
California. Division of Water Resources.