My information on Charles Kilborn is different.I have:
Charles Kilborn married Olive Benedict, daughter of John Benedict & Phoebe Brown.I picked this up from a RootsWeb tree (which gives their marriage date as 11 Feb 1838), but it is backed up by the fact that Olive's maiden name is identified in the marriage record of her daughter (Lucy) Adelade, Mar 1865 (Leeds & Grenville Co.)
Charles Kilborn and Olive Benedict had the following children (from census and other records): Phoebe Maria Delorme L Lucy Adelade Almira (married Rev Robert Love Edwards) Charles Isaac Wellington
Almira was my gg grandmother.
Note that Charles and Olive's first child was born about 1839.Olive Kilborn (daughter of Amassa and Harriet) was only about 15 then - not impossible, but less likely than Olive Benedict, who was about 20 in 1839.