Isaac Duke Parker was a son of John and Sarah White Parker. He was born in Georgia on April 7, 1793 and came to Texas as an adult with his family, finally settling in a stockade fort near the current town of Groesbeck in the early 1830s. The circumstances of the raid are probably familiar to many. To summarize, the Parker family consisted of about two dozen people and there were numerous others living in the compound. Many names are similar, adding to the confusion, but below is a rough listing of the family members and close relatives in or near the fort at the time of the attack:
- John Parker (“Elder John Parker”) – a widower
- Silas Mercer Parker, Sr. – husband of Lucinda Duty Parker
- Lucinda Duty Parker – wife of Silas Mercer Parker, Sr.
- James W. Parker – son of Silas, Sr. and Lucinda
- Cynthia Ann Parker – daughter of Silas, Sr. and Lucinda
- John Richard Parker – son of Silas, Sr. and Lucinda
- Silas Mercer Parker Jr. – son of Silas, Sr. and Lucinda
- Orlena Parker – daughter of Silas, Sr. and Lucinda
- Sarah Pinson Duty (“Granny Parker”) – mother of Lucinda and Clara Elizabeth
- Clara Elizabeth Duty Kellogg – sister of Lucinda and recently widowed
- Benjamin Franklin W. Parker – brother of Elder John
- Isaac Parker – brother of Elder John
- Sarah Parker Nixon – daughter of James William
- Lorenzo Dow Nixon – husband of Sarah Parker Nixon
- Luther Martin Thomas (“L. T. M.”) Plummer – husband of Rachel
- Rachel Parker Plummer – wife of Luther, daughter of James William Parker
- James Pratt Plummer – son of Luther and Rachel
- James William Parker – father of Rachel
- Abigail Parker – sister of Elder John
- Daniel Parker – brother of Elder John
- Martha “Patsy” Dixon Parker – wife of Daniel
Texas History Notebook 