Hi, you can view Norman & Ann's marriage record on line at
www.novascotiagenealogy.comIt is very hard to read but it looks like his parents are listed as A & M Matheson.
His father may be Angus Matheson -- death records in 1873 show an Angus Matheson -- infant son of Norman and Ann Matheson. Death records in 1875 show an Angus Matheson -- b. Scotland, son of Neil and Effie (short for Euphemia).
Hope this is somewhat helpful.