I have been working of tracing the Rosendale family in the United States since about 1953. For a quarter of a century, I was stopped at the immigrant to this country in 1840/41. He came from Swanland, Yorkshire. The key piece of data that came to light several years ago was that the spelling in England had been Rosindale. In searching, I found that the spelling was changed by census takers and school records--not officially--shortly after coming to Ohio, but it stuck and has been used that way ever since. The earliest record of the family that I have found is in England, in the area of the Rossindale Forest in Lancashire. One piece of the family seems to have moved to Wales and eventually took the name Lloyd of Aston. There are a number of spelling variations that I have come across: Rossindale. Rossendale, Rosiendale, Rosendale, Rosindale, Rosedale, and others. There is some indication that the name may have evolved from Norse Viking settlers from the Old Norse "hrassa-dair" meaninng "horse valley." Good luck in your search. Please keep me informed.