Joan:
Welcome to Ireland Reaching Out!
The free site www.irishgenealogy.ie has Co. Kerry church records. Church of Ireland records are not as plentiful as the RC records. I was able to locate an 1840 marriage record for Edward O'Neill and Elin Hickson in Killorgin parish which was likely Elin's parish. Did not find a marriage record for Thomas O'Neill and Ellen Harold. I did find two possible baptismal records for an Edward Neill and a Charles Neill in the Kilcolman C of I chruch. See below.Killorglin and Kilcolman parishes border each other.
The marriage record showed townlands Edward O'Neill was from Knockavota which is in Kilcolman parish and Elin Hickson was from Tinahally in Killorglin civil parish.
I think it is likely that Thomas and Edward were brothers. Do you know that young Edward was born in 1837?
Roger McDonnell
Area - KERRY (COI) , Parish/Church/Congregation - KILLORGLIN
Marriage of EDWARD O'NEILL of KNUCKAVATA and ELIN HICKSON of TENAHALLA on 29 February 1840
HusbandWifeNameEDWARD O'NEILLELIN HICKSONAddressKNUCKAVATA TENAHALLA
Area - KERRY (COI) , Parish/Church/Congregation - KILCOLMAN
Baptism of EDWARD NEILE of KILDERRY on 13 February 1837
NameEDWARD NEILEDate of Birth13 February 1837 (BASED ON OTHER DATE INFORMATION)AddressKILDERRYFatherTHOMAS NEILEMotherELLEN NR
Area - KERRY (COI) , Parish/Church/Congregation - KILCOLMAN
Baptism of CHARLES NEIL of KILDERRY on 20 October 1840
NameCHARLES NEILDate of Birth20 October 1840 (BASED ON OTHER DATE INFORMATION)AddressKILDERRYFatherTHOMAS NEILMotherNR NR