I and my half-sister are considering having DNA testing done, for the following primary reasons:
- To attempt to identify my sister's paternal line. We have no information about her father, who may be American, British, Polish, French, Belgian or something else entirely; however, American or British are probably most likely.
- To shed more light on the question of linkages between various James families in Llanfair Nant Y Gof, Wales in the 1750 - 1800 period (or possibly even earlier). This is 5 or 6 generations back on my mother's line.
- To investigate the persistent family story on my mother's side that we have Spanish and/or Jewish ancestors, although nothing has shown up in the documentary evidence yet. (To be honest, I just want to put this question to bed and not deal with it ever again at family reunions).
- To assist in future lines of research.
There is no living male descendant of my father or paternal grandfather (that I have located yet), so Y-DNA testing at the present is not possible. We am therefore planning to have mtDNA and Autosomal DNA testing done.
We are based in the UK.
What factors (other than cost) should I consider when comparing the various testing services on offer?