Son of Finn Greve-Isdahl and Gyda Ulrikke Greve-Isdahl Father of Ragnhild Greve-Isdahl; Signe Greve-Isdahl and Margrethe Greve-Isdahl Brother of Finn Greve-Isdahl Half brother of Kirsten (Kitte) Greve-Isdahl; Berit Hirsch Isdahl; Thora Margrethe Hirsch Isdahl and Private