I hope that somebody can help me. I am looking for any information on my great-great grandfather and his family. He was Francis Perreault, born in Canada, date unknown. He married Angele Cournoyer in Canada. Does anyone have this family in their family tree?

Their daughter Catherine was born 1877 in Canada. She married Joseph Joncas. Joseph was born April 5, 1889 in St. Louis, Quebec. Joseph & Catherine Joncas were living in Jaffrey, NH in the 1930 census. I have not found any information on who Joseph Joncas family was. Perhaps I don't have the correct spelling of his last name. Any help would be greatly appreciated. Thanks.