Yes, the March and Cramm surnames are found throughout that part of Newfoundland. I am not doing broad research on those names, though, only work on the specific people in my daughter-in-law's family tree. The only John March in her tree, so far, was born 31 Oct 1877 at Old Perlican and was the son of William March and Mary Jane Bickett. I know nothing more about that person, though; only about his sister Annie that married Walter George Cramm.
Dave Ball