Luc Rousseau is the uncle of Marie-Grace Gardner.




Luc Rousseau is Marie-Grace's maternal uncle; he is Marie-Grace's mother's youngest brother. He works as a steamboat pilot on the Mississippi River.

Early in the series he is courting Océane Michel, and is married to her at the end of Marie-Grace Makes a Difference.

In Cécile's books, he is referred as Monsieur Luc.

In The Books

Meet Marie-Grace

Meet Cécile

Marie-Grace Makes a Difference

Cécile's Gift


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