Did your Harmon Dildine pass through Arkansas? The 1870 AR, Newton County census has one Dildine family, which is:
Harm Dildine43 TN Nancy J.43 TN John15 TN James H.13 TN Sarah J.12 TN Mary10 TN William8 AR Silas7 AR Benton5 AR Caroline3 AR Joseph H.1 AR Malinda50 TN
Is this your family line?
My search is for a John W. Dildine who married in Newton Co. AR in 1873 to Martha L. Blackwood (b. c1848 SC). I've not had a chance to look at the 1880 for this county.John must have died in Newton Co sometime before Nov 1889, as his widow Martha Dildine married again in Newton Co. in Nov 1889 to Wiley Williams. Would you know if this John W. Dildine is connected with your family line?