Not sure if this will be much help, but I thought I'd pass it along.
The San Francisco Earthquake happened April 18, 1906 and this small newspaper article is dated June 15, 1906 (2 months later). Not positive but this might be your Emanuel Picasso (seems like an uncommon name).
If this is him, maybe they moved after the earthquake.
It's a distance of about 12 miles from SF to Oakland.

Oakland Tribune
Oakland, California
June 15, 1906
Page 11

CASES HANDLED IN
THE POLICE COURT

The cases of Frank Williams, charged
with battery, and of John Hart and
Emanuel Picasso, charged with a like
offense by their wives, were stricken
from the calendar of department 2 of
the police court this morning, no com-
plaints having been filed in any of the
cases.