Dale, Firstly did you ever determine whether or not your Sarah Boissoneau was the daughter of Emery Boissoneau?? Also, Emery was married twice his first wife was Angelique Belavalle and his second wife was Angelique Biron. For a period of time he and his family lived in Fort William (Thunder Bay, Ontario, Canada.) and he eventually moved to New Westminster, British Columbia.
In his early years he was a master carpenter and boat builder. In 1861 he lived in Sault Ste Marie, Ontario with his father Joseph, Sister's Lucy and Mary and younger brother Leon (my G-G-Grandfather) Emery or Emeric was the 6th child (all boys) of Joseph and his first wife Marguritte Guillmond Leon, Lucy and Mary were from Joseph and his second wife Nancy Mesquabanokwe. Is this your Emery?? Dave