1908
U.S. Geological Survey
1:125k
1921
US Geological Survey
1:250k
1946
Mueller, Harold M.
1888
Rowan, Valentine James
1942
Mora, Jo (1876-1947)
1888
Rowan, V. J. (Valentine James)
1:95k
1881
Wheeler, G.M.
1:253k
1930
Reddick, Harry E.
1941
Hedger, H.E. (Harold Everett)
1:165k
1936
Los Angeles, Calif. : County Surveyor