I also found this map on Facebook which gives the San Fernando/Ontario location. It looks like some of the site had become part of Lockheed by 1949.
The caption says
"Here's the 1949 Sanborn Fire Map of the Three G Distillery / Lockheed Manufacturing Site at San Fernando Road and Ontario St., Burbank. No doubt that Lockheed added some covered Square Footage from the time that Robert Gross purchased this property in 1939."
Michael Ragan on Facebook