Possibly the swiftest route to your roots.
Irish genealogy website directory.
www.irelandoldnews.com/History/runaways.htm
Description:
A redemptioner is an immigrant, generally from the 18th or 19th century, that gained passage to America by selling themselves as an indentured servant. An Indentured servant is an unfree labourer under contract to work (for a specified amount of time) for another person or a company/corporation, often without any monetary pay, but in exchange for accommodation, food, other essentials, training, or passage to a new country. After working for the term of the contract (traditionally seven years) the servant was then free to farm or take up trade of his own. The term comes from the medieval English "indenture of retainer" — a contract written in duplicate on the same sheet, with the copies separated by cutting along a jagged (toothed, hence the term "indenture) line so that the teeth of the two parts could later be refitted to confirm authenticity.
