Possible Correction - my mother had possibly located my g grandfather as an Albert Acheson married to Elva Bass in Kansas and not Robert Ramsay Acheson, although my grandfather Leslie Dryden Acheson is listed in Ancestry.com as the child of Robert Ramsay Acheson. If this is true then Leander son of Robert would be the line rather than the Robert Ramsay connection. I can only locate two Leslie Dryden Acheson's listed in the US, my brother and my grandfather, so my information is limited. Either way, the line would travel from Robert and Eleanor McDonald Acheson as I can find no links to the Harry Hooker Acheson line or the Canadian/South Dakota lines unless I have missed something. The best bit of research I have found is @ http://familytreemaker.genealogy.com/users/b/o/y/Daniel-J-Boyd-MO/WEBSITE-0001/UHP-0001.htmlhttp://familytreemaker.genealogy.com/users/b/o/y/Daniel-J-Boyd-MO/WEBSITE-0001/UHP-0001.html.