Henry H. Symons

1894

• California mineral production and directory of mineral producers for 1930
• California mineral production and directory of mineral producers for 1931
• California mineral production and directory of mineral producers for 1937
• California mineral production and directory of mineral producers for 1939
• California mineral production and directory of mineral producers for 1942
• California mineral production and directory of mineral producers for 1943
• California mineral production and directory of mineral producers for 1945
• California mineral production for 1928
• California mineral production for 1929
• California mineral production and directory of mineral producers for 1932
• California mineral production and directory of mineral producers for 1933
• California mineral production and directory of mineral producers for 1934