Possible Clues:

• Abbr. on some business cards
• __ Genevieve, MO
• Sault ___ Marie, Ont.
• Office bldg. division
• Marthe or Marie: Abbr.
• Abbr. in many a Québec address
• Paris's Rue ___ Croix de la Bretonnerie: Abbr.
• Joan, e.g.: Abbr.
• ___ Anne de Bellevue, Que.
• Abbreviation in some Canadian place names