The documents section of this website has a transcription of thirty-five letters sent by Henry "Harry" Billups and his wife Agnes Gratton from Mifflin County, Pennsylvania, to Agnes' sister Emily Hall in Derbyshire, England.
Most of the information here is about my family or my wife’s, or about families with ties to Cleveland, Ohio, or the area near Rostrevor and Kilkeel in County Down, Ireland. There are also some unrelated families included that I came across. Whatever the case, I hope the material is helpful in your own efforts. -- Ed Hamilton