Eleanor and Wes worked at the Rancho San Carlos in the house itself, staff to the Oppenheimer family.
Chris: “My Grandparent’s albums say they were there from 1966 to 1974. They made a few visits back to see the Oppenheimers and/or one of the other families who lived there… I recall that 2 other families lived close to the main house and they ran the cattle operations for the ranch. “
.

.

.

Chris: .. my Grandmother just outside the main room, beside the round topped door that leads into the main living room.On episode 1, you see cast members coming into the living room through that door…
.
.

A bonus picture of Wes out on the ranch with his family, with grandson Chris holding the fishing rod – taken at Moore’s Lake.
.
.
And finally, Chris today holding some of his prized Rancho San Carlos mementos:

.
.
Links:
The Hacienda main page
Aerial views of the house and environs, taken from Google Earth.
To: The House at Rancho San Carlos
The Rancho’s Grounds
Filming the pilot episode
.
.