Thanks for the help Gordon. On the 1920 USA census for Seattle, Washington he is listed as B. Robert Paterson, born in Melbourne Australia. However his year of birth on this census would be 1866 or 1867. His father and mother were born in Scotland. He came to America in 1868. Since he was a deaf mute he must have written the information out for the census taker. Thanks for looking this up for me. Are their any Melbourne genealogy sites on-line? As far as I know he always spelled his name Paterson. His grandson still spells it with the one t.