Oltmans1910–?Nama dan MargaJohn OltmansLinimasaBirth1910Death0HubunganSaudara kandungOltmans (1900–1980)Oltmans (1910–?)Oltmans (1920–1990)Oltmans (1910–2000)Oltmans (1910–1990)Oltmans (1910–2000)Oltmans (1920–2000)Orang tuaHarmon Oltmans (1873–1943)Sarah Riddle (1883–1934)Sumberwikitree Oltmans-17