On FamilySearch/Family Tree information is given that David M. Bartlett, b. 1830, md. Nancy C. Stinson 9 Jan 1851 in Madison, Illinois, d. 29 Oct 1863 in Decatur, Illinois. Contact e-mail is firstname.lastname@example.org. If this is accurate, The oldest child at time of his death would be 11 years. Possibly probate papers assigning guardianship of the children could be located. David might be buried in an unmarked grave in the same cemetery since he died just a little more than a year after his wife with none but minor children in the immediate family. Perhaps living relatives of children Laura Luella Bartlett, d. 1943 or William Harrison Bartlett, d. 1944 could be located.