Eliza Ottaway 1846 Headcorn, England

I am looking for any information on the Ottaway family.My relative apparently used the name of Eliza but could have been called at birth by the name of Elizabeth.She was married 1 Dec 1863 in Sutton Valence, Kent, England to James O'Leary born 28 Aug 1839 in London, Middlesex, England.Her eldest son, my relative, was named John O'Leary and born 24 Jun 1865 in Sutton Valence, Kent, England.Other children were James O'Leary born 3 Sep 1868 and Annie O'Leary born 7 Mar 1871 and Elizabeth O'Leary born 7 Jul 1874 and William O'Leary born abt 1881.It would seem that all the children were born in Sutton Valence.
Using the Vital Records Index-British Isles I found an Elizabett OTTAWAY christened on 13 Sep 1846 in Gillingham, Kent, England.Her parents were Thomas OTTAWAY and Cecilia.This could be my Eliza...I'm not sure.