author
b. 1818
A Gold Rush-era traveler and illustrator, this 19th-century author is best remembered for vivid books about the journey to California and life in the mining camps. His work blends practical advice for would-be travelers with lively scenes from the overland and isthmus routes.

by J. M. (John M.) Letts
Born in New York in 1818, J. M. Letts is associated with the California Gold Rush as an author, photographer, and illustrator. Library and archival records identify him as J. M. (John M.) Letts, and surviving references connect him with travel writing and pictorial work centered on California in the early 1850s.
He is best known for California Illustrated and A Pictorial View of California, works that describe the trip west by way of Panama and Nicaragua and recount conditions in San Francisco, Sacramento, and the mining country. Contemporary and archival summaries note that he traveled to California in 1849 and later used sketches from that period in his published work.
Although biographical details about his later life are not easy to confirm from the sources available here, his books remain useful historical windows into Gold Rush travel, camp life, and the excitement surrounding California in that era.