Born ‎18-6-1842 Leeuwarden-Friesland, Netherland‎. Son of Samuel Abraham Markus - Levy and Schoontje Meijer Koopman/ Pola‏

Born ‎31-1-1835 Rotterdam, Netherland, died ‎30-9-1910 Amsterdam, Netherland‎, 74 or 75 years, ‎1st marriage to: Alexander Elias Adelaar/ Stibb, ‎2nd marriage/ related to: Maurits-Morits Marcus Markus/ Koopma. Daughter of Emanuel Menachem Joachim Loewenstam/ Gottstei and Henriette Esther Jacobson/ Loewensta‏