Lois; Letters of administration were filed in Bates County Probate Court August 6th 1867 for Richard O Choate who died intestate. John B Newberry was appointed estate administrator.
To timeline this I've got him born 1819 Kentucky, marrying Isabelle Catherine Young in Lincoln County 8 Dec 1848, 1850 census in Warren Co MO, land grant 1 120 acres, May 1857 Bates County, land grant 2 40 acres, 1 June 1859 Bates County, probate as above 1867.
Son Samuel Richard died age 79 of a stroke in 1940 with a birth date of April 25 1862. He is found with Isabelle in 1880 census in Lincoln County.
FWIW