Thanks so much for all the info.Have you checked the 1840 census for Tallahatchie County, Mississippi?It is my understanding that the family moved there after 1835 and before relocating to Hopkins County, Texas in 1847.
I have detailed info on the descendants of Ira and Martha's son Ira. He and his wife Ann Shockley Brooks Yates were my greatgrandparents.I have limited information on the other siblings.In addition to the descendant info, I have a few articles that were written about Ira and family photos of them.And, I know an interesting family legend that involves Ira and Martha Elizabeth.I will be glad to share any of this that would interest you.Please email me directly at firstname.lastname@example.org and let me know what you'd like to have. Thanks again!!!