Frederick married Rebecca PICKARD on 29 Jul 1785. Rebecca (daughter of William PICKARD and Mary WINDEMOED) was born in 1769; died in 1845. [Group Sheet] [Family Chart]

1. Elizabeth MARKLE was born on 29 Jul 1786; died in 1869; was buried in Brampton Pioneer Cemetery, Brampton, Peel, Ontario.
2. Mary Esta MARKLE was born on 21 Sep 1788; died on 15 May 1868.
3. Benjamin MARKLE was born on 26 Jun 1790; died in 1875.
4. Solomon Osterhout MARKLE was born on 18 Dec 1792 in Niagara Township, Lincoln, Ontario; died on 23 Mar 1874 in South Dumfries Township, Brant, Ontario; was buried in Paris Plains Church Cemetery, Paris, Brant, Ontario.
5. Abraham MARKLE was born on 18 Feb 1796; died on 14 Feb 1883 in Blenheim, Oxford, Ontario.
6. Rebecca MARKLE was born on 22 Dec 1794 in Niagara Township, Lincoln, Ontario; died on 3 May 1860 in Niagara Township, Lincoln, Ontario; was buried in Saint Marks Cemetery, Niagara-on-the-Lake, Niagara, Ontario.
7. Margaret MARKLE was born on 8 Dec 1801 in Virgil, Lincoln, Ontario.
8. Catherine MARKLE was born on 14 Jan 1803 in Niagara Township, Lincoln, Ontario; died in 1892; was buried in Crispin Cemetery, Hanover, Grey, Ontario.
9. Delilah MARKLE was born on 21 Nov 1807; died on 26 Apr 1891 in Lincoln County, Ontario.
10. Sarah MARKLE was born on 19 Jun 1784 in Schnectady, New York; died about 1865 in Stamford Township, Welland, Ontario.
11. Henry MARKLE
12. Frederick MARKLE