« Reply #5 on: Thursday 31 December 20 12:49 GMT (UK) »
Many thanks, All

This is such an odd one for me. Until now, I've not come across a father's name on a marriage certificate without a given/first name. Not sure what the "De" bit represents... Is it part of the surname, part of a given name, a title, an abbreviation, or something else? And the born at sea bit really doesn't help

Interestingly, I've found Amy on the 1871 census in Cheetham Prison.
Rowan Tree
ASPEY: Wirral & Tarvin, CHS
BARNETT: Hulme, Manchester & Oldham, LAN
BLACK: Grasmere, WES & Prescot, LAN
COTTAM, HEATON & LITTLER: Ashton-in-Makerfield, LAN
DIEHL: Germany & LAN
FORSHAW: Haydock, LAN
HARRISON: Newton-le-Willows, Haydock & Parr, LAN
JACKSON: Newton-le-Willows, LAN & Somerford Booths, CHS
PARKINSON: LAN
PHILLIPS: Chester, CHS & Manchester, LAN
MADDOCKS: WLS, CHS & LAN
ROSCOE: Sutton/Prescot, LAN