Many (most?) public libraries in South Louisiana & East Texas should have a copy.
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Do you need a lookup I am sure someone can do one. Give us as much info as you have. Any Specific Questions. We will usually share whatever we find as others may be following the family..
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Did you know that Andre-Carl Vachon a few months ago released his "en french" L'histoire de la famille acadienne des LeJeune dit Briard. LA & TX have 7 generations & a few other areas have more.
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There are several things in the Young book that he had to change and some new things. For example Southwest LA Jean-Baptiste, Blase & Joseph and their sister were with (The Pierre) Gue(i)dry & Boutins and related families that were the 50 Acadians that were exiled to North Carolina.