Indeed they have …

… The Library of Congress Disrespects a Poet Laureate – BLARB. (Hat tip, Dave Lull.)

…  I decided to try to resolve the question of William Jay Smith’s heritage by hiring an expert in Native American genealogy, Dr. William T. Cross.

Dr. Cross’s research confirmed that everything William Jay Smith claimed about his Choctaw heritage was correct. Rebecca Moshulatubbee King was the oldest daughter of Chief Moshulatubbee and married Samuel Jake Williams. One of their seven daughters, Catherine Permilia Williams, married Samuel Roswell Campster in 1850, and then gave birth to George Washington Campster in 1863. In 1913 George Washington Campster’s daughter, Georgia Ella Campster, married William Jay Smith Sr., the father of our Poet Laureate.