Hi Jackie... You did an incredible job in compiling all those Marcoux and Seguin, and I had consulted your site before posting my message. Edouard and Zoé married in 1870, but where and what date exactly? Both had lived and died in the Laprairie and St-Jean area, in the province of Quebec, but married elsewhere, probably in the U.S. Unless I haven't searched well in your site, I was unable to find the answer.Thank you so much for your response. Claude.