While lacking an official US government proclamation, outreach and promotional activities by groups such as the international Fondation des Alliances françaises have led to July being designated as French-American Heritage Month.
All images below are links leading to a variety of information about Franco-Americans: When and how they have arrived (including present day), how some French American communities self-isolated at first, but eventually assimilated, and above all - their rich, on-going socio-cultural impact. This is not at all a definitive list of resources, more of a stepping-off point.
Some of the linked resources will require an FSU login.