To my knowledge, there is no Native American blook in the Rowlett line - there may have been from one of the wives along with way, but the Rowlett line is Huguenot from earliest immigrant ancestors.And the Owen side - I don't think so, but could be wrong.I have that line at home and have done very little other than prove Jemima's father (Jesse Owen) was in the Amer. Revolution - I did William's father (John) and Jemima's father for DAR supplemental lines.
There is supposed to be Native American in my line but that supposedly comes from Mary Pack who married Culvin Rowlett, son of Ewing Rowlett and Nancy Milam.
My line is (I think as I am at work) and have not done anything with Rowlett line in years:
William Rowlett/Jemima Owen Moses Rowlett/Isabel Hogan Ewing Rowlett/Nancy Milam Culvin Rowlett/Mary Pack Ora Rowlett/Elic McFadden(my grandparents)