FREDERICK married MARY JANE STRAIN in 1859. MARY (daughter of JOSEPH STRAIN and ELIZABETH LITTLE) was born in 1835 in Monaghan Co., NIR; died on 8 Sep 1880 in Flesherton, Artemesia Twp. ON, CAN; was buried in 1880 in Flesherton Cemetery, Artemesia Twp. ON, CAN. [Group Sheet] [Family Chart]

1. JOHN WESLEY ARMSTRONG was born in 1877; died in 1892.
2. MARGARET E. ARMSTRONG was born about 1860.
3. GEORGE ARMSTRONG was born about 1861 in Artemesia Twp., Grey Co., ON, CAN.
4. ELIZABETH JANE ARMSTRONG was born in 1862 in Artemesia Twp., Grey Co., ON, CAN; was christened in 1863 in Artemesia Twp., Grey Co., ON, CAN; died in 1946 in Artemesia Twp., Grey Co., ON, CAN; was buried in 1946 in Flesherton, Artemesia Twp. ON, CAN.
5. SARAH JANE ARMSTRONG was born in 1867 in Artemesia Twp., Grey Co., ON, CAN; was christened in 1867 in Artemesia Twp., Grey Co., ON, CAN.
6. CHARLOTTE ARMSTRONG was born in 1869 in Artemesia Twp., Grey Co., ON, CAN; was christened in 1869 in Artemesia Twp., Grey Co., ON, CAN; died in 1945 in Artemesia Twp., Grey Co., ON, CAN; was buried in 1945 in Flesherton, Artemesia Twp. ON, CAN.
7. FREDERICK WILLIAM ARMSTRONG was born about 1870 in Artemesia Twp., Grey Co., ON, CAN; died in 1934 in Artemesia Twp., Grey Co., ON, CAN; was buried in 1934 in Flesherton, Grey Co., ON, CAN.
8. CLEMENTINA ARMSTRONG was born in 1874 in Artemesia Twp., Grey Co., ON, CAN; was christened in 1876 in Artemesia Twp., Grey Co., ON, CAN.
9. JOSEPH ARMSTRONG was born in 1874.