Transportation in Early Sonoma County

http://cdnc.ucr.edu/cdnc/cgi-bin/cdnc?a=q&r=901&results=1&ifl=901&e=-------en-Logical-20--881-byDA--IN-sonoma----

A "fine fast running steamer Georgiana" made regular trips from San Francisco to Sonoma" (to the embarcadero St Louis, as you couldn't navigate into the town itself) three times a week. For freight or passage. At first by Lamb, but by 1851 it was operated by Arnold Engels Jr, Ambrose J Hooper & Co of Montgomery Street.