It took me years to put the Oong Arshowe records together after going through newspapers from 1840-1900.
He is a legend.
Charles Arshowe naturalized on 03/19/1860 , the 2nd one is a Civil War Chinese soldier who made it in June of the same year.
I have seen Arshowe's signature in Chinese on his petition for citizenship.
Although my article is in Chinese buy you have the references in English.