I have discovered that Louis' wife was Catherine FITZPATRICK. However, prior to her he was married to Sophia (Sophique) MARTIN.Sophia and Louis had several children including Joseph, George, Sabin, Hilaire and possibly Emilie.
Mary was the only child (that I can find at least) of Louis and CATHERINE. I believe Catherine was born in Jan 1842.
If anyone has any additional information or can point me in the right direction of finding info, it would be GREATLY appreciated.