When Marie Louise Sinclair was born on 12 April 1825, in Yamachiche, Maskinongé, Quebec, Canada, her father, Robert Sinclair, was 35 and her mother, Marie Marguerite Louise Rivard dit Loranger, was 29. She married Hubert Pinard on 4 October 1843, in Nicolet-Yamaska, Quebec, Canada. They were the parents of at least 5 sons and 9 daughters. She died on 28 April 1899, in Saint-Germain-de-Grantham, Drummond, Quebec, Canada, at the age of 74, and was buried in Saint-Germain-de-Grantham, Drummond, Quebec, Canada.