Amy,
Sorry but my line is not the William Finch line. My line is the Maryland 1792 to Marion County,Ohio 1830 to Dewitt County, IL in abt 1850 to Traill County, ND in 1910. My William was born March 13, 1792 in Dorchester County, MD and died in DeWitt County, IL April 27, 1883. He is buried there in the Wilmore Cemetery and I have pictures of his headstone and that of my gg and great grandfather in DeWitt County. I also have numerous newspaper articles from DeWitt County in the mid and late 1800's. Sorry I can't help on your line of Cardiffs. I do have a family bible with pictures from the 1800's. I also have obtained pictures from a Cardiff/Harrold album. Kitura Harrold was my gg grandmother.
Good luck on your ventures.
Gary