Rancho Caymus

[2] Through the influence of Mariano Guadalupe Vallejo, George C. Yount received the two league Rancho Caymus in 1836, and became the first permanent Euro-American settler in the Napa Valley.

[3][4] With the cession of California to the United States following the Mexican-American War, the 1848 Treaty of Guadalupe Hidalgo provided that the land grants would be honored.

After George Yount’s death in 1865, the courts stepped in to sell the remaining portions of his property.

Judge Serranus Hastings bought a large portion of the original Rancho Caymus.

He later sold part of his property to Captain Gustave Niebaum and California State Senator Seneca Ewer.