Source: Records of St. Martin and St. Severus Catholic Church in Muenstermaifeld. Source of the place and approximate year of his birth and of his wedding, and his place of death: Manfred Ruettgers.
Johann and Apollonia’s son Michael married Maria Margarete Dietzeler; their daughter Anna Elisabeth married Maria Margarete’s brother Johann; and their daughter Anna Barbara married Maria Margarete and Johann’s brother Philipp.

Source: Records of St. Martin and St. Severus Catholic Church in Muenstermaifeld. Source of her parents’ names, the place and date of her birth, and her place of death: Manfred Ruettgers