The street sign says Piedmont and Glen Avenue. Piedmont was renamed Foothill, and finally Altadena Drive.
The citrus orchard was being graded for the Orange Blossom Homes subdivision.
If you go north on Glen Avenue from Altadena Drive, the houses on the street are part of the Janes' development, built after World War One. Glen Avenue is a few blocks east of Lincoln.
Below is a photo of the same shot as it appears today.