I can't help you with the Labrucherie question but the surname Loustalot rang a bell. In the 1930s and 1940s there was a supervisor and sheriff in the town of Bakersfield, CA, with that name. I looked him up on the 1930 census and this is his information. He might be a relative:
Felicie Loustalot, head, age 53, widow, born in France, parents born in France,emig. 1894
John E. Loustalot, age 26, born CA, supervisor,
Kern Co. Schools.
He became sheriff in the late 30s.
Best wishes,
Judy