Koehler1930–2020Nama dan MargaA. Koehler, A. Nathan, Betty Ann KoehlerLinimasaBirth1930Death2020HubunganSaudara kandungKoehler (1920–2000)Koehler (1920–1950)Orang tuaKoehler (1890–1970)Cooper (1890–1980)Sumberwikitree Koehler-453