Mietje Beer was a daughter who was born in the 2nd wedlock of Nathan Hermanus Beer (1836-1921) and Paulina Scheffer (1851-1927). From May 1888, the Beer family lived at Jacob van Campenstraat 83 in Amsterdam, where Mietje was born six months later, on 10 November 1888. She remained unmarried and worked as a seamstress.
In June 1926 Mietje settled in The Hague; she lived among others at Oranjeplein…