I used 23andme a year ago to do dna testing. It shows that my maternal Haplogroup is H2a2b1. I haven't managed to locate any relatives there unfortunately, but have received some interesting health information from them.
Just recently I purchased kits for one of my daughters and one of my sons and their results are now in. The paternal Haplogroup is R1b1b2a1a1 (which would be the LUCIER line).
From 23and me:
"Today R1b1b2a1a1 is found mostly on the fringes of the North Sea in England, Germany and the Netherlands, where it reaches levels of one-third. That distribution suggests that some of the first men to bear the haplogroup in their Y-chromosomes were residents of Doggerland, a real-life Atlantis that was swallowed up by rising seas in the millennia following the Ice Age.
"Doggerland was a low-lying region of forests and wetlands that must have been rich in game; today, fishing trawlers in the North Sea occasionally dredge up the bones and tusks of the mastodons that roamed there. Doggerland had its heyday between about 12,000 years ago, when the Ice Age climate began to ameliorate, and 9,000 years ago, when the meltwaters of the gradually retreating glaciers caused sea levels to rise, drowning the hunter's paradise. Doggerland's inhabitants retreated to the higher ground that is now the North Sea coast."
As to be expected, since I am their mother, I share 50% DNA over 23 segments with both of them. The two of them share 49.1% DNA over 53 segments.
When I have some time to play around with it, I will see if I can find relatives on their dad's side for the tree.