|Guysborough, Nova Scotia|
His wife was Diana Hadley, whom he married between 1784-1789. Last fall I borrowed a Family History Library microfilm of Guysborough Baptismal Records, which shows that John and Diana (Dinah) had at least six children: John, Henry, Ruth Hadley, Joseph, Diana, and Sarah Margaret.
I don't have birth information or death information for John Morgan and I wonder if more research in Guysborough County would help.
I descend from their daughter Diana.
Diana Morgan was born December 17, 1803, in Manchester, Guysborough County, Nova Scotia.
She married Thomas Cutler Whitman on March 13, 1827, in Guysborough. They followed their daughter, Esther, to Boston in 1857. I wrote about Diana in a 52 Ancestors in 52 Weeks post last year.
She and her family can be found in Jamaica, Queens County, New York in the 1860 U.S. Census.
She died "after a lingering illness" on April 25, 1861, in New York City. She is buried in Elmont Cemetery, Nassau County, New York, and there is a FindAGrave memorial for her.
They had nine children, born between 1828 and 1851: Esther Abigail, George William, Thomas, Judson, Maria E., Ira A., Harriet, Charles, and Gordon. Most of them came to New York, but a few remained in Canada.
I descend from their oldest child, the daughter they followed to Boston: Esther Abigail Whitman.
Esther Abigail Whitman (1828-1921) married James Pyle (1823-1900). They had seven children and three died very young.
Generation 4: James Tolman Pyle (1855-1912) married Frances Adelaide McAlpin
Generation 5: Charles McAlpin Pyle (1893-1966) married Elizabeth Adsit
Generation 6: Charles McAlpin Pyle, Jr. married my mother.
Generation 7: Me
Much of what I know about my Morgan line are from the following sources:
 Guysborough Sketches and Essays, by A.C. Jost. The revised edition was published in Guysborough, Nova Scotia in 2009.
 Pyle, Smith and Allied Family Histories (Privately published, 1951). As I noted in my Surname Saturday~Pyle post, there are only a few copies of this book owned by second cousins. However, keep in mind that this is a secondary source that does not include primary sources. I'm not 100% sure of its accuracy.