Found the parents.Note the spelling of last name. Father = Peter Degeer Mother Mary Degeer
John was married twice. Catherine was the second wife.First wife was Elizabeth Winterstien married 15 Apr 1823 Whitechurch Twp, York, Ontario.Died 25 Dec 1873 Whitechurch Twp, York, Ontario.John had 16 children by her.
John - b.1801,Stamford Twp, Lincoln, Niagara, Ontario.He had no children by Catherine.
To find this info use this link - 1880 US Census – The Mormon Church Files LDS (Free, indexed and searchable) Click on the SEARCH tab at top of page http://www.familysearch.org/Eng/default.asphttp://www.familysearch.org/Eng/default.asp
On the first screen displayed - enter "John Degeer" nothing else.You will find John under the listing "Ancestral File".