In the book called "Dictionary of Newfoundland and Labrador Biography" there is one Martin mentioned from Labrador.
MARTIN,MARTIN (1890-1976) b Nain;Inuit elder;d Nain Sept.
Martin was for many years chief elder of the Inuit community at Nain and frequently served as a lay preacher for the Moravian congregation there. RHC
There are other Martin's listed in this book below is just a sample from each.If you would like the rest of what is written on either of the following just let me know.
MARTIN,ALBERT MORTIMER (1900-1978).b St.John's 9 Jan;vice-president and general manager Bowater's Newfoundland 1955-62,president 1962-64,chairman of the board 1964-65;inducted Newfoundland Sports Hall of Fame 1974;d St.John's.
MARTIN,CABOT (1944- )b Carbonear;admitted to the bar 1969;chief policy advisor to the Premier 1979-85;president Newfoundland Inshore Fisheries Association (NIFA) 1987- .
MARTIN,JOHN WILLS (fl 1816-43).b Dorset,England;MHA Placentia and St. Mary's 1832-36.
I hope this is of help to you or anyone else researching the surname Martin.