I'm sure it is the same name.In the records Leeman is sometimes spelt Leemon (the Rosebrook Leemons, my relatives spell it that way), Leman, Leomon and even Lennon. And these are all our family.
The Leemans and Poolers of Armagh settled around the great Celtic fortress of Emain Macha.I'll give the lcoation of the farm for the Poolers later today. It is the site of interesting archaeological discoveries.
Pooler is said to have come from Pohler, meaning aPolish Jew. Leeman is spelt Lehmann in Germany and it pronounced the same as Leeman.