manns family

Search for any one that might have a clue.My great grandfather Amos or Anderson Manns Married to Delia Manns.Probably in the early 1800's.To this marriage to whom I can remember there were (my great uncles, Uncle John, Uncle RQ(Robert Quincy, Uncle Tim, Great Aunt Cornelius, Aunt Bessie, Aunt Ethel, Aunt Laura.There were more childern to the union, I am not able to remember all of there names.
The family lived near Houston, TX in Nevasoda, TX.They lived on a farm far away from the city.I have not a clue the year or time my great grandparents passed away.I do remember one of the oldest Girls, Laura Manns married went by the name of Laura Peck, she also lived in Nevasota.I am not sure if she actually lived in the same farm house of her parents or she and her husband had there own home.Aunt laura had married once, before she became a peck.
My greatgrand Dad I was told, was full blood indian.My Greatgrand mother was Irish.We all ended up as being Black Americans.If any one have any information on this manns family please repy.Thanks in advance