In 1851, Abel Stearns acquired the rancho and sold it in 1858 to Augustin Machado. Augustin Machado built a seven-room adobe ranch house and an outbuilding on the southwest side of the lake. Soon after, Rancho La Laguna became a regular stop on the Butterfield Overland Mail route between Temecula to the southeast and the Temescal station to the northwest. The old Manriquez adobe was used as the station house. Over the years, a framed addition and a second story were added, and it was used as a post office for the small settlement of Willard from 1898 until September 30, 1902. The building stood until it was razed in 1964, at what is now 32912 Macy Street. Today, three palm trees still grow in front of the site along Macy Street in front of the property.