People listed here should be known to have been in Northern California during the period from 1848 to 1855.
Charles H. Bennett, present at the first discovery of gold
Samuel Brannan
Jean Baptiste Charbonneau
Charles Crocker
Alonzo Delano
Charles S. Fairfax
Thomas Fallon
Joseph Libbey Folsom
John C. Frémont
John White Geary
Domingo Ghirardelli
Daniel Govan
Ulysses Grant
Albert W. Hicks
John Wesley Hillman
Sherman Otis Houghton
William B. Ide
Frank James
John Sutter
Seth Kinman
James Lick
Heinrich Lienhard
James Marshall, discoverer of the first gold
Richard Barnes Mason
John Templeton McCarty
James McClatchy
Benjamin McCulloch
Joaquin Miller
Joaquin Murietta
Isaac Murphy
Joshua Norton, a.k.a. His Imperial Majesty Norton I, Emperor of the United States and Protector of Mexico
Lester Allan Pelton, inventor of the "Pelton Runner," considered to be the "Father of Hydroelectric Power"
Addison Pratt
Benjamin B. Redding
William Tecumseh Sherman
Claus Spreckels
Leland Stanford
Elijah Steele
Levi Strauss
John Sutter
Matthew Turner
Mark Twain
Maríano Guadalupe Vallejo
William Waldo
Bela Wellman
Luzena Wilson
Edwin B. Winans