Looking more into the effects on culture from the impact of residential schools (in general), there are a number of good resources to consider. This article from the Canadian Journal of Law and Society, titled Introduction: Residential Schools and Decolonization, provides a good introduction (as you would expect from the title) to many of the issues that had such a direct impact on the culture of First Nations children.

Canadian Journal of Law and Society
Volume 27, Number 1, 2012