Koersches, Maria Rosalia Christina ” Mary” Facts16 MAY 1871 - Birth - 29 JUL 1956 - Death - Ancestors ? Henry Koersches - ? Maria Rosalia Christina " Mary" Koersches16 MAY 1871 - 29 JUL 1956 Mathias Hahn15 SEP 1803 - 10 JUL 1878 Sabilla Agnes Hahn17 JUL 1833 - 11 SEP 1901 Anna Margaretha Dorech1788 - 10 JUL 1879