Third Generation

15. William Dennis O'Brien was born about 1787 in Berks County, Pennsylvania. He appeared in the census in 1790 in Berks County, Pennsylvania. Enumerated as a male under 16 in the home of his father Brien O'Brien Jr. MARRIAGE: "Early East TN Marriages", by Sistler, Vol. 1, Grooms, Pg. 277.

William Dennis O'Brien and Marjorie Christian were married on 7 Aug 1807 in Greene County, Tennessee. Marjorie Christian was born between 1790 and 1800. William Dennis O'Brien and Marjorie Christian had the following children:

82

i.

Mary J. O'Brien was born on 30 Mar 1819. She died on 26 Mar 1884.