This is a unique family. The immigrant comes over and promptly has eight daughters and thus his own surname doesn't survive him. There are no Denny genealogies. Yet, he has many descendants through his eight daughters. This is also a family where, although I tend to rail at the genealogical gods for the lack of records, I found the perfect record. It is an 1809 estate settlement for John Denny that lists all the daughters and their husbands. Pretty perfect document in my eyes.
1. John Denny was born ca. 1725 at Donegal, Ireland and died 20 March 1797 at Londonderry, Nova Scotia. He married about 1752 in Ireland, Rebecca Mitchell, born about 1725 and who survived him but is likely dead by the 1809 estate settlement when she is not mentioned. John immigrated in 1761 with a group from northern Ireland designed to settle Nova Scotia. He was a yeoman farmer. John and Rebecca had eight daughters: i. Jane who married Robert Dill, ii. Mary who married Isaac O'Brien; iii. Margaret who married Andrew O'Brien; iv. Nancy who married John Christie; v. Catherine who married Alexander Hanlow; vi. Rebecca, below; vii. Martha who married William Archibald, son of Thomas and Janet (Orr) Archibald; and viii. Sarah Anne who married William Davidson.
2. Rebecca Denny was born about 1766 at Londonderry, Nova Scotia and died there April 1838. She married 14 January 1790 at Londonderry, George Spencer, born December 1758 at Clanda Horky, Donegal, Ireland and died 31 May 1838 at Londonderry, Nova Scotia, son of Robert and Jane (---) Sepncer. George and Rebecca had seven children: Lucy, James Mitchell, Catherine, Rebecca, Mary, Jane, and Margaret.
Nova Scotia Immigrants to 1867, Volume II compiled by Leonard H. Smith Jr. and Norma H. Smith (Gen. Publishing Co., Baltimore, 1994), p. 71.
Planters and Pioneers Nova Scotia 1749 to 1775 by Esther Clark Wright.
Historical and Genealogical Record of the First Settlers of Colchester County Down to the Present Time by Thomas Miller (Halifax, NS, 1873), p. 243.
The Londonderry Heirs: a story of the settlement of the Cobequid townships of Truro, Onslow, and Londonderry, in Nova Scotia by John Michael Murphy (Truro, NS, 1976).
The Settling of Colchester County, Nova Scotia by New England Puritans and Ulster Scotsmen by Arthur W.H. Eaton (From the Transactions of the Royal Society of Canada, Third Series 1912, Vol. VI)(Ottawa, the Society, 1912).
Planters and Grantees of Cobequid, Nova Scotia, 1761-1780 by Carol Campbell and James F. Smith (Colchester Historical Society, Turo, NS, 2011), p. 238-41.
Deaths, Burials, and Probate of Nova Scotians, 1749-1799, From Primary Sources Volume 1 (A-K) by Allan Everett Marble (Halifax, NS, 1990), p.65.