Clotilde from France and Flynn Family Ireland

I have been researching my family tree for many years,and i have come up against 2 brick walls.
Firstly is my 3xpaternal GGrandmother Clotilde all i have been able to find out is that she was born in France about 1802,she married George Lovett he was born in 1791 in Surrey,i think they must have married in France because their first 2 children were born in France and then they had 2 children born in Hertfordshire.
Secondly is my maternal Grandfathers family he was Maurice Flynn born 1857 Botherbee Ireland he married a Eliza Lyons i have been unable to trace any further back the Flynn or lyons family.
Over the years i have kept trying to knock the bricks out of the wall,with no success if any one can help it would be great no matter how small the information