Pontiac federal electoral district

As well as the municipality of Pontiac and the MRC Pontiac, there is also the electoral district of Pontiac - larger even than the MRC (or old "County").

This Wikipedia article has a list of the members of Parliament since 1867, and election results 1867 to present. Some election expenses are listed too. It seems to be accurate - the source is the Library of Parliament. There's even a small map.