Additional information from the Mooresville Library Legacy link:
Birth Date: 05/22/1855
Spouse: Nellie Edith Day
Survived By: 2 daughters, Mrs. W. O. Mills and Mrs. R. E. Mitchell; 4 grandchildren.
Other: Age 84. Jones Family Mortuary. Funeral at home, Rev. Gertrude Reinier officiating. Married Dec. 7, 1886. Father of Susan and Mabel.
Parents: Willis and Rachel Epperson Barnett. 

His obituary from the September 14, 1939 Plainfield Messenger (Hendricks County):

Funeral services were held Sunday afternoon at the home for James A. Barnett, 84, who died Friday. Burial was at Mooresville Cemetery. Mr. Barnett is survived by Mrs. W. O. Mills of West Lafayette, and Mrs. R. E. Mitchell, Indianapolis, daughters. He was born near Mooresville and had lived in that vicinity his entire lifetime. He was a member of the Friends church, Odd Fellows lodge, and was a past master of West Newton Masonic lodge.