Noble, Black, Harmon, Stevenson Northern Ireland

Searching for James Noble, born about 1805-1811, perhaps Co. Cavan, but uncertain, died 1900 in Walkerton, On. Canada. Emigrated to Canada approximately 1830-1840. Married Mary Harmon, born 1816, Ireland. Son David Allan Noble born 1850 in Gore Township, Peel County, Ontario, Canada. 

Also searching for Stephen Black, D.O.B. 1799 - possibly in Co. Armagh, N.I. and wife Mary Stevenson, also possibly born Armagh. Have marriage bond dated 1830 from Diocese of Armagh, Church of Ireland. Emigrated to Canada shortly before or after marriage.

Is anyone else searching for similar?

James Noble