I've recently made contact with a DNA match I found on myheritage.com.
The match is shown as:
Estimated relationships: 1st cousin twice removed - 3rd cousin once removed
DNA Match quality: 1.3% (93.0 cM)
Shared DNA: 6 Shared segments 34.2 cM Largest segment
There are only three matches on myheritage.com shared by myself and my contact: my three full-sisters (who each share between 0.7% and 1.3% of the matches DNA). My contact does not match my maternal half-sister, which suggests (I'm open to correction) that the match is on my father's side of the family.
The ISOGG Automsomal DNA Statistics page indicate that our shared ancestor is somewhere at the level of a great-grandparent or great-great grandparent. Interestingly, we have great-grandparents who share the same name and come from the same area of the country at about the same period: James Harper from Dudley. There are no other possible matches in our trees, although we both have some gaps to fill.
I have accounts (with DNA data) on FamilyTreeDNA, 23andMe, Ancestry and Gedmatch as well as MyHeritage, however my contact is unwilling to transfer their DNA results to Gedmatch or FamilyTreeDNA, so I can't explore common matches at those other sites. They have only recently started researching their family history and don't have sources for their work.
As this could potentially break down a longstanding brick wall for me, I'm keen to explore the match as much as I can. What options exist for me to investigate further?
Note : I have only one known living relative on my father's side and he has already declined to take a test. I have other matches at other sites that may be on my father's side, but we have not been able to confirm that for certain or identify wherre it might be.