The information came from http://www.rootsweb.com/~miisabel/lincolncem.html
Page 12 of 19
Jones, Jefferson died 12-21-1887 aged 79 years 1 mo 16 days. Laura, wife of J. Jones, died Jan 19, 1887 ages 73 yrs 9 mo and 6 days. Their is a footnote that makes no sense to me This mother in the ground illegible.
Do not know what that means? Probably need to follow up with the cemetery. I have a picture of the tombstone. If you would like a copy.