Jonathan was also known as Johnathan Bowerman. He was born circa 1838 in Picton, Ontario, Canada.
After 1838, Jonathan was employed or working as a a farmer, spending the better part of his life in Grey County. He was the son of
Stephen Ichabod Bowerman and
Catherine Cunningham.
Jonathan married
Catherine Raven, daughter of
William G. Raven and
Elizabeth Wilcox, on 28 March 1861 at St. Vincent Township, Grey Co., Ontario Province, Canada.
1 
He was Methodist. He lived in Hamilton, Ontario, Canada, between 1897 and 1907. He was a member of at Rock Chapel Methodist Church between 1897 and 1907 at Hamilton, Ontario, Canada. He lived in West Flamboro, Ontario, Canada, between 1907 and 1908.
Jonathan Bowerman died on 13 July 1908 at Pleasant View Farm, Guelph Road, West Flamborough, Wentworth, Ontario, Canada,, "at the family residence."
2
He was buried after 13 July 1908 at Rock Chapel Cemetery, West Flamboro, Ontario, Canada.