I found Nannie Richardson in a 1880 census in Precint 1, District 47, Nacogdoches, Texas. Mention Nannie as a niece. I looked and found out Martha A. Burrows (maybe incorrect)was born in Alabama like a few Richardson's were born in that state like David Humber Richardson. I beleive David is Nannie's father. The mother is mostly wrong because I can't find her.