Hi, Linda, I don't have a death date/place either. My notes on this family are as follows, maybe something from it may help?
!SOURCE: Janet Weeks; 217 Tillman St.; Rogersville, MO 65742 2/11/97
Isaac & Sarah ultimately settled in Harrison Co., MO.They were in the 1880 MO Soundex with family, but not found in the 1900 MO Snd.In 1910 there was a "Sarah, age 62, from KY, living alone in Linn Co., MO."
!SOURCE:Eugene H. Nickell; 920 Loma Verde Ave, Palo Alto, CA 94303-4017 (650) 494-7647
Civil War Pension Application: Isaac was injured by his horse in Arkansas. He was 19 when he enlisted; he was 6 feet tall, light complexion, black hair and blue eyes. He also had rheumatism in the knees. His brother, Thomas N., was in the same outfit with him.
MO Cemetery listings from LDickin628@aol.com but I've not talked to her in some time.
I've a Web Page at http://nickell.tierranet.comhttp://nickell.tierranet.com and have about 23,000 descendants of John NICKELL of Ireland if you are interested.