Thaddeus died in June of 1900 and is buried near the family homestead of his father Oscar Arnold. The map coordinates are. 40°10'41.0"N 98°29'52.2"W. Thaddeus' headstone is located alongside his daughter Bessie's headstone.
His father, Oscar Arnold, came to the county in the spring of 1874, and settled a few miles northeast of the present site of Cowles. There came with him, or about the same time his four sons, William, the eldest: Sam, Thaddeus and Charles with him also came five very attractive daughters. The eldest daughter married James McCleary, a former sheriff of Adams county; Adaline married W.H. Norris; Gene married a man by the name of Pierson; Nellie became Mrs. Harris; Susie married a Doctor Johnson, who practiced medicine for some time in the vicinity of Cowles. Of the boys Sam, the next to the eldest, located in Adams county, and later removed to the state of Washington. William, the eldest, located near the homestead of his father and eventually moved to Oklahoma; Thaddeus took a homestead and a timber claim near his father's location, while Charles was too young to make a homestead or filing entry, being only in his teens.The Publicist (Chandler, Okla. Terr.), Friday, July 27, 1900
Death of Thad Arnold.
Thadeus Arnold, who resided with his family for seven years eight miles north of Stroud, OK, and who became very despondent at the untimely death of his oldest son last winter, and who went to his old home in Nebraska in search of better health about two months ago, died by his own hands on his brother Charles’ premises near Rosemont, Neb., June 29. His wife and children, excepting Sam, had got there about two weeks before his sudden death. Thad and family were visiting at his brother’s on that day and he seemed to be unusually gay.
His brother Charles was mowing some weeds in the afternoon when Thad persuaded him to let him mow awhile, which he did, but afterward when his brother told him that he had better take arrest. Later in the day -Thad was found dead. The deceased was well known all over this county and has a brother in Payne and another brother living in Pawnee county. He leaves a wife and six children to mourn their loss. He was born about forty years ago, in Henry county, Ills. – Stroud Messenger.