Laura Bloch was born on September 5, 1866 in Mechtal/Beuthen (today Miechowice/Poland) as the daughter of Samuel Bloch and his wife Rosalie née Koppel.

Jenny Breith was born in Breslau on December 19, 1867, the daughter of Adolf Breith and his wife. She married Isidor Wachsner and lived with him in Ohlau. The children born were: Alfred in 1886, Gertrud in 1887, Rudolf in 1894 and Else in 1897. Then the family moved to Berlin where another 3 children were born. Isidor Wachsner ran a shoe factory, then a glow light company and then a construction company until he died in 1922.

Gertrud Wachsner was born in Ohlau on October 17, 1887, the daughter of Isdor Wachsner and his wife Jenny née Breith.