Unfortunately when my father Wynne Arthur Popkiss passed away, my family tree was mislaid. For the origin of this family tree I know it was Peter Popkes as you have stated who came over to the UK in 1603. The spelling of Popkes did change over the years, on the family tree, my father was given from a member of this line, it showed the name spelt through time as Popkes, Popkess, Popkis and Popkiss. My father had 3 sisters, his father and his grandfather were sailers in the merchant navy. I have one brother and one sister.