Sorry - false alarm. The actual image shows McCormack - so it was a transcription error.
I should have looked at the image first. :-(
I think the first letter is "A" - not "O" ... so could start with Accer_____
I found a "Carl Accerea" (1940 Census) and a "Carl Accerman" (1900 Census) in Phila and New York, respectively.
Also "Carl Accerno" but his wife was named Mary (in MO - 1933).