Along with his neighbors, he was caught up in the settlement's shifting political fortunes resulting from international conflict between France and England.
Since most of the LeBlancs lived in the Minas settlements, dozens of them fell into the hands of the British in the fall of 1755 and ended up on ships bound for Maryland, Virginia, and other English colonies down the Atlantic seaboard.
[7] Many LeBlancs were exiled to France and then about 1785, along with Acadian families carrying other surnames, left aboard ships for then Spanish Louisiana; some of these LeBlancs gave testimony in France to a Catholic Priest who carefully recorded their oral testimony of who their ancestors were (since the Catholic and Civil records were unavailable, destroyed, or lost due to their mistreatment by the British authorities).
The first descendants of Daniel LeBlanc to emigrate to the colony reached New Orleans in February 1765 with the party from Halifax via Saint-Domingue led by Joseph Broussard dit Beausoleil.
After a brief stay in the city, during which one of them exchanged his Canadian card money for Louisiana funds, they followed the Broussards to the Atakapas District, where they helped created La Nouvelle-Acadie on the banks of Bayou Teche.