Jan Erik and his brother Carl Gustaf are first mentioned as sons out of wedlock to Brita Lisa Henricsdr with the family name Westström. Later on Carl Gustaf moved to Norway and continued to use the name Westström, sometimes Weström/Westrum. Jan Erik on the other hand is always , after the first mention, referred to the family name Vretström/Wretström. I have not been able to find any trace of the unknown father to the boys..
