Date of Birth: 
About Isaac Graham
- Isaac Graham (April 15, 1800 – November 8, 1863) was a fur trader, mountain man, and land grant owner in 19th century California.In 1830, he joined a hunting and trapping party at Fort Smith, Arkansas that included George Nidever.
- Graham attended the Rendezvous at Pierre's Hole and took part in the battle of Pierre's Hole, in present-day Idaho. From there, Graham's path to California is unclear.
- He may have joined Joseph R.
- Walker's party, or joined one of the groups led by Ewing Young.
- His son later claimed that Graham came by way of Oregon, while his daughter said he took a southern route through Chihuahua, New Mexico. The next positive evidence finds him at Natividad on the Rancho La Natividad, northeast of present-day Salinas, in Mexican Alta California, where he established a distillery.
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