Mcginty S IN Roscommon

The Roscommon connection turned up nothing. I could not find any connection with the Guinty's, or McGinty's in Roscommon. Mary may have been from there though. There were a lot of Hanleys from there, actually their ancestral home. The McGintys are from County Cork, and Donegal. Some Irish from Cork traveled to Donegal to look for work, so my search will shift from Roscommon to Cork and Donegal. Any suggestions on free sites with info?