Hi again!The birthdate I have for David Acheson is Apr. 12 1839 Fermanagh Ireland.Im not sure when he came over, but he married Margaret Robeson Sept. 6 1862, at Pembroke, Ontario, Canada.He died Sept. 4 1922 in Westbend Iowa.My great grandfather was George Louis Acheson. They ended up in North/South Dakota.That is where my family is from. I did find a list of all the children and dates, so now I just need to go back from David.Good luck to everyone on researching David!!