Eddie Regelin, his father, Frank Regelin, Marvin Koster, Arthur Heiden
and Lloyd Rath at Marv Koster's farm on Dixon Road in the 1960s

Arthur and Marvin were cousins. Lloyd was a neighbor. The Regelin's are distant relations to the Heiden family. The link appears to occur back in Germany where Dorothea (Regelin) Laas was a cousin of Rika (Knaack) Heiden. Rika was the grandmother of Arthur and Marvin.