Hellol Neah,
James Craig married Margaret Jane Titterington about 1868
William John Dillon married Abigail Titterington about 1865
Alexander Harvey married Jane Titterington about 1866
Edward Titterington married Margaret Trimble about 1867
Rebecca Ellis - died 31st March 1888 aged 74;
buried with Elizabeth Titterington in Kilwarlin Moravian graveyard. Co. Down
Do a Google search for Ros Davies and open Co. Down Ireland Genealogy Research Site. Go to surname Craig.
I regret there does not appear to be the name Titterington on this site.
The above marriages took place in the Moira/Hillsborough area of Co. Down.
Ros Davies shows Harveys in both Hillsborough and Moira.
http://www.presbyterianireland.org/congregations/moira.html - You may find this site helpful.
http://www.irelandoldnews.com/Newry/1828/18280201.html -
This site mentions the death of Mary Ann Harvey, wife of John Harvey of Moira, in 1828
http://www.lisburn.com/books/historical_ society/volume6/volume6_ Mention is made in this site of Alex Titterington, Market Square, Lisburn, Co. Antrim
I hope this is of some help to you.
Best Wishes, Christopher