Harm Haien Rüstmann, son of Johann Peters Rüstmann and Amke Harms Hagen , was born on 14 February, 1866, in West Dunum, Dunum, Ostfriesland.

Harm married Tjide Baumann on 16 March, 1888, in St. Petri Church, Flanagan, Illinois. They had four children: Johann Peter, Antje Emilie, Lammert Friedrichs , and Matte .

Johann Peter Rüstmann was born on 28 February, 1889, in RR Flanagan, Illinois and died on 17 December, 1944, in RR Flanagan, Illinois, at age 55.

Antje Emilie Rüstmann was born on 30 September, 1891, in RR Flanagan, Illinois.

Lammert Friedrichs Rüstmann was born on 11 September, 1895, in RR Flanagan, Illinois.

Lammert Friedrichs married Tena Weymina Janssen on 28 January, 1920, in St. Petri Church, Flanagan, Illinois. Tena was born on 26 October, 1897, in RR Flanagan, Illinois, died on 19 December, 1982, in RR Flanagan, Illinois, at age 85,and was buried on 22 December, 1982, in St.Petri Cemetery, Flanagan, Illinois. They had two children: Deloras Margorie Elise and Velda Eileen .

Deloras Margorie Elise Rustmann was born on 13 October, 1921, in RR Flanagan, Illinois.

Deloras Margorie Elise married Roy E. Conrad on 5 August, 1945, in St. Petri Church, Flanagan, Illinois. Roy was born in Washburn, Illinois.

Velda Eileen Rustmann was born on 16 October, 1927, in RR Flanagan, Illinois, died on 7 June, 1985, in Flanagan, Illinois, at age 57, and was buried on 10 June, 1985, in St. Petri Cemetery, Flanagan, Illinois.

Matte Rüstmann .

Matte married Henry Danekes on 5 March, 1919, in St. Petri Church, Flanagan, Illinois.