Robert J. Miller, Arizona State University College of Law, has published American Indian Constitutions and Their Influence on the United States Constitution in volume 159 of the Proceedings of the American Philosophical Society (March 2015). Here is the abstract.
This paper analyzes modern-day American Indian constitutionalism. It describes the development of written constitutions by Indian nations and primarily focuses on constitutions developed since 1934 under the auspices of the federal Indian Reorganization Act. This paper also briefly examines the evidence that American Indian political philosophies, and traditional tribal governmental structures and ideas, influenced many of the Founding Fathers and the drafting of the United States Constitution.Download the article from SSRN at the link.