The 1880 U.S. Census. the 1881 Canadian Census and 1881 British Census are available on-line for free at Familysearch.com.
Familysearch.com is a genealogy website from The Church of Jesus Christ of Latter-day Saints in Salt Lake City, Utah.
Recently, someone added marriage records from New York City to Familysearch.com and I found the marriage record for the second marriage of my great grandmother Sabra Cockrill and the on-line record listed her parents in England.I did not know the names of her parents before that.It was a great break through on that line.
Familysearch.com has a lot of good and free information.
I also have subscriptions to other on-line genealogy websites.