My husband's great-grandfather was also Lloyd Rigdon Carroll. The 1850 census shows Lloyd Rigdon born about 1830 in N.C. or Tenn. He was married to Charlotte Chapman. I wonder if this connects to your grandfather Lloyd Rigdon Carroll. I wonder if Charlotte may have been 2nd wife of Lloyd Rigdon. Do you have any record of that? I've reached a deadend on this line. Apparently, Lloyd Ridgon's father was Stanley Carroll, born 1804 (according to 1850 census records).
Your information says he fathered two children, but I'm showing he fathered an Issac Wilson Carroll on 1 Jan 1859 in Harrison, AR, Boone Co. Issac died Oct. 14, 1929 in Greenville, AR, Wash. Col, at age 70.
The 1850 census for Mountain (could be Mountainburg, which now appears to be Crawford county), Washington County, Arkansas, lists my family name of Stanly (this is the spelling) and indicates that Stanly was born in North Carolina, along with his daughter Lucinda, and sons Rigdon and Merrill. His son Stanly and daughter Penina were born in Tennessee.
I'm looking for research in Washington county, Arkansas for the Stanly (or Stanley) Carroll line. We have visited the Rigdon Carroll tombstone in a cemetery in Boone County (Greenland), Arkansas. Our records show he was born in North Carolina, but spent most of his life in Washington County and southwest Missouri. Any information you can provide would be greatly appreciated. If you need additional data, please let me know.
Sincerely, Jeannette Carroll