I'm happy to say I've finally gotten somewhere. It turns out that the children of my ancestor Henry Kness were living in the Brough household in 1870. I don't know why as of yet. You mentioned that Benedictine Nagle remarried, well I found her and her Kness children in the 1880 census. Her new husband Julius Strickmiller's surname was spelled Stockemiller, and all of the Kness children held that surname, which is why I had such a hard time finding them. I still don't know anything about Henry Kness, except that he died before 1879, but according to the census Benedictine (mispelled Banna on the census) was born in 1840 in Austria. Thank you for all your help!