My husband's great grandfather had a brother, Benjamin H. Riggs born ca 1845 in Illinois.He was married to a Mary C. Riggs.There children were:
William J. born ca 1866 in Missouri Arthurborn 1869 in Missouri Edgar S.born 1871 in Kansas Anna P.born 1873 in Kansas Sarah (or Nora) born 1880 in Kansas John McGeeborn 12 Jan 1884 in Geuda Springs, Kansas
1875 census records show Mary and two children, Edgar and Annie living in Beaver township in Cowley County, Kansas.I don't know where Benjamin and the two oldest children were.Perhaps the record was incomplete.
1880 census records show Ben, Mary, Wm. J, Arthur, Edgar, Anna P. and Sarah still living in Beaver township.
1885 census records show them living in Harrison township, Chautauqua County, just to the east of Cowley.John is included in this census.It lists Sarah as Nora.
The information on Benjamin's age is different then what you have.He was listed as 35 years old in the 1880 census.
My husband's great grandfather was John William Riggs.Family tradition list Judge Rubin Riggs as his father but I do not believe this is true.John also had the following siblings: Henry, Silas, Charlie, Annabelle and Mary (Mollie).
I hope this helps, I'd be glad to have any information you can share.Thanks, Barbara