Rev. John Ryerson was the 4th son of Col. Joseph and Sophia Mehetable (Stickney) Ryerson. He was the husband of Mary Lewis) Ryerson. Mary died October 8, 1892. Rev. Ryerson was a minister in the Genesee ( Western New York/now Upper New York) Conference of the Methodist Episcopal Church 1821-1824 - Canada at organization 1824-1828 - Methodist Episcopal Church of Canada at organization 1829.

Rev. Ray Allen, D.D.
A Century Of The Genesee Annual Conference Of The Methodist Episcopal Church, 1810-1910, c1911, Page 117
Rev. John Ryerson and Rev. William Ryerson

Dictionary Of Canadian Biography, Volume X,
--excellent biography of John Ryerson

Ryerson, Albert Winslow
The Ryerson Genealogy: genealogy and history of the Knickerbocker families of Ryerson, Ryerse, Ryerss, c1916, Page 55
No. 96 - Rev. William Ryerson, born 1797, married Mary Griffin, died September 13, 1873
No. 97 - Rev. John Ryerson, born June 12, 1800, married Mary Lewis, died October 8, 1878

Northen Christian Advocate
September 21, 1861
Rev. Wm Ryerson, recently elected to the Canadian Parliament, has been deeply afflicted by the loss of his two nieces. They were bathing in the Grand River, while their mother was visiting at a house in the vicinity. One of the girls succeeded in crossing the river, the current of which is very rapid, and called upon her sister to follow. In doing so, the latter fell down, and the sister coming to her rescue, both were carried away by the current and drowned. It will be remembered that Dr. Ryerson resigned his office and profession as a minister of the Gospel in the Wesleyan connection in Canada, a few months since, after a service of near forty years. The resignation was necessary to his political promotion, as no minister of the Gospel could become a member of the Canadian Parliament.

Owen E. A.
Pioneer Sketches Of Long Point Settlement, Or Norfolk's Foundation Builders, c2008, Page 70
"Rev. John Ryerson, fourth son of Col. Joseph Ryerson, married Mary Lewis of Hamilton."