Albert Einstein

Here is a photo from October 1st, 1940, showing Albert Einstein receiving his United States citizenship papers from Judge Phillip Forman. I suppose he must have passed the test — wonder what his score was?
The photographer was Al Aumuller. Searching for Al I found lots of references to his photographs, all celebrity photos, dating from the late 1930s to the early 1950s. But poor Al has passed under the radar of photographic biographers. I could not find any information on his life. I searched the genealogical resources, censuses and city directories — found a couple possibilities, but no way to know which (if any) were him, since they were not listed as photographers in the 1920 and 1930 censuses. This one stumped me.
