I found the GREATOREX site a couple of weeks ago. An elderly uncle of mine has provided me with a family tree dating back to William Greatorex who was married to Elizabeth. They lived in St Alkmunds, Derbyshire. They had five children, who were born on the dates in brackets: THOMAS (7.10.1827) WILLIAM (21.5.1829) EMMA (4.3.1832) FREDERICK (19.3.1834) GEORGE (5.2.1837).
My own family tree goes back to Frederick Greatorex who married a Sarah Roberts at St Johns Church in Manchester on 4.8.1857. Sarah Roberts was the daughter of a brewer from Manchester. Does your research tie in with any of this?? Alternatively, if you are in contact with any other Greatorex, please forward this info to them.