Hey, I have a contact for you, and documentation on this family.On my web site you'll find published material that lists the family you are researching.Dr. Joseph Druse published a work called "Blackmore Families of Ireland" that he filed with the L.D.S. family history society.He let me transcribe it and I've uploaded that to my web site:
The fifth bullet under the heading "On This Site" has two files, one in Microsoft Word format and a second in Rich Text Format.
I found John (index number C-69 on page nine) with Ann and their children.The work was published in 1968 and that family was traced back to at least 1709 and to as recently as 1955.Dr. Druse suggests links to other Irish Blackmore families that were traced back even further.
When I contacted Dr. Druse, in 2000, he sent me an update with more material on these families.The second document is the sixth bullet.The 2000 version updates many records from the first, and also adds information as recent as 1999.
The title page has Dr. Druse's address, so you might want to write to him to find out more information on this family and his contacts.