Arundel and Maria Disney were in Goderich, Ontario in 1861. Their son Kepple is found as "Caple" with his wife Mary and son Elias were in nearby Morris tp. Also in Goderich were the family with a Kepple Disney who was 21 in 1861. His parents were Robert and Jane. That Kepple later married a Harriet. Perhaps that is the Kepple you are asking about who was born 1840? I suspect that Robert was a brother of Arundel, but have no documentation on that.
Some of the Canadian census records are available online at no charge. The 1871 heads of Ontario households are at: http://collectionscanada.gc.ca/databases/1871-ontario/001016-100.01-e.phphttp://collectionscanada.gc.ca/databases/1871-ontario/001016-100.01-e.php The 1881 census is also available through collections canada and through FamilySearch.org. Both 1901 and 1911 are free at automatedgenealogy.com. For 1901 and 1911 you can access the actual images.