In 1864, Jose Andres Sepulveda, owner of Rancho San Joaquin, sold to Benjamin and Thomas Flint, Llewellyn Bixby and James Irvine for $18,000 to resolve debts due to the Great Drought. In 1866, Irvine, Flint and Bixby acquired Rancho Lomas de Santiago for $7,000. After the Mexican-American war the land of Rancho Santiago de Santa Ana fell prey to tangled titles. In 1868, the ranch was divided among three claimants as part of a lawsuit: Flint, Bixby and Irvine. The ranches were devoted to sheep grazing. However, in 1870, tenant farming was permitted.