This was Mother's first car - a 1936 Pontiac Master Six Coupe.
click image to enlarge
In July, 1938, Mom was working for the Los Angeles Civic Light Opera Association. Evidently the job paid well enough for her to afford her own automobile. I'm pretty sure she didn't live at Silverlake Court, though. If I had to guess, I'd say it was her sister, Lorraine, who lived there, and took this picture, too.