The Jean 'Jornot' LeBlanc House is one of the oldest residences in Dieppe, and is a symbol of the struggle between Acadian residents and the powerful DesBarres family. In early 19th century Dieppe, the wealthy DesBarres family held an extreme monopoly over the local land. In certain parts of the area, court battles over land rights were held between the family and the local Acadians, who risked being exploited or losing their homes under DesBarres.

A handful of Acadian settlers established a small community at a section on the bank of the Petitcodiac River in southern Dieppe without permission from DesBarres. Among this group was Jean LeBlanc Jr., also known as “Jornot,” who built this residence for himself. The government had seized this land from the DesBarres family in 1825, yet the land titles were not reacquired by the residents of this community until 1831.

In the following decades, the house would be handed down throughout the LeBlanc family. It was first given to Jornot’s only son, Philippe, who later passed it onto his second son, Josué, or "Josh". The house would eventually be acquired by Josué's eldest son Guillaume, nicknamed "Willie". In all, six generations of the LeBlanc family occupied the home.