There have been many misconceptions about this man's name, but his full name is Martin Pierre Lejune dit Briard. He is often known as Pierre, or Martin. There has been large confusion about him, and some records show a Pierre Lejeune marrying another woman a few generations later. This is a different Pierre Lejeune however. Martin Pierre Lejeune dit Briard had a son named Pierre Lejeune, sometimes dubbed Pierre Lejeune II. The second had a son named Pierre Lejeune as well, who is also known as Pierre Lejeune III. Martin Pierre Lejeune dit Briard emigrated over from France in the early 17th century. He was born circa 1595 and is one of the earliest Acadian forefathers.

Sources: Une colonie feodale en Amerique: L'Acadie (1604-1881). Tome 2. Pgs 318-320, Edme Rameu de St-Pere.