Dwight Radford has been a professional genealogist, specializing in Scots-Irish and Irish research for decades. I know him well personally as he's helped me and many others on the annual Salt Lake Christmas Tour. The subtitle of his book tells the story: "Strategies and Sources in the Quest for Ulster-Scots Origins." The list of maps and illustrations takes three pages! You will not find list of names in this book but with your ancestor in mind, you'll gain new ideas of where to look for him to document his/her life.