Margret Wittmer, daughter of Johannes Walbroel, a goldsmith, and Eva Leuchtenberg was born in Cologne on July 12, 1904. Margret, her husband, and her stepson moved to Floreana in 1932. She gave birth to a son and a daughter while living on the island. She returned to Germany on two occasions: the first in 1935, the second in 1960 to present her book “Postlagernd Floreana” (“Floreana” in English). Margret died in 2000. She was 96 years old.