I googled Arthur Walfred Peterson and he showed up on a www.geni.com site. I clicked on that and if he was born Oct. 25, 1905 he is the one you are looking for. If it is the correct family I found, his father is Walfred Anders Peterson born May 19, 1880 and died in 1944 in Belleville, New Jersey. It says he was born in Nytorp, Fjaros near Kungsbacka, Sweden and came to the US in 1896 at the age of 16. If this is your family, then Arthur was born in the United States probably in New Jersey. Walfred's wife is Martha (Bjorkegren) born in Smaland, Sweden on Dec. 24, 1879 and died in W. Orange, NJ in 1964. Check this out. I hope it is your family and it helps you find them.