Vaino Nystrom, or rather "Wäinö Nyström" had two brothers, Torsten (1883-1954) and Rudolf (1884-1972), and a sister Mimmi (1885-1958).
Torsten had a son ,Stig (1910-?), who was born in New York, and three grandsons, George, Ronald and Alan.
Rudolf had a son, Bo (1922-2002), and a daughter, Ingegerd (1920-2000). Bo in his turn had two children, Agneta (1952) and me, Robert (1954). Ingegerd had three daughters, Lena (1947), Ann (1949) and Pia(1954) and a son, Jan (1955).
Mimmi married a captain Konstantin Wegge and had four childen of whom one (Ragnar or "Ray") emigrated to New York in the 1940's or 50's and had two sons, Ronald (1947) and Richard (?)
If you are Roy Nystrom's and Edwina Abramoske's son David, born 1962, then I'm your second cousin, grandson of Rudolf, living in Stockholm, Sweden.