Jean Baptiste died some time between January 30, 1809 and November 26, 1810 place unknown. He was not referred to as the late Jean Baptiste Biroleau until his daughter Marie Catherine's marriage November 26, 1810
"Québec, registres paroissiaux catholiques, 1621-1979," index and images, FamilySearch (https://www.familysearch.org/ark:/61903/3:1:3QSQ-G99S-KW95?i=253&wc=9RLC-JWL%3A24054401%2C24054402%2C25748401&cc=1321742 : accessed 12 February 2015), Sainte-Geneviève > Sainte-Geneviève > Index 1741-1876 Baptêmes, mariages, sépultures 1741-1786 > image 254 of 554; nos paroisses de Église Catholique, Quebec [Catholic Church parishes, Quebec].
"Québec, registres paroissiaux catholiques, 1621-1979," index and images, FamilySearch (https://www.familysearch.org/ark:/61903/3:1:3QS7-L993-8X5W?i=14&wc=9RL6-MN5%3A20462201%2C20462202%2C20462203&cc=1321742 : accessed 12 February 2015), Saint-Eustache > Saint-Eustache > Baptêmes, mariages, sépultures 1769-1795 > image 15 of 574; nos paroisses de Église Catholique, Quebec [Catholic Church parishes, Quebec].
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The dit in the last name was a document, a letter from a guarantor given to a person changing parishes or military individuals from abroad, vouching for this individual as a good Christian for him to marry in the Catholic Church, and dit was the guarantors last name. Children and grand-children would adopt this name thinking it was a title, especially since most were illiterate. The University of Montréal have samples of these old documents in their Archives