Originally the BERGSTROMs, they changed their name to BILLSTROMS upon arrival in the U.S.A. to be more Americanized. They settled first in Nebraska and then worked their way into Colorado, first to the Denver area and then into the Delta Valley of the Gunnison River. There seem to be relatives all over Southern Colorado, particularly in the Pueblo area. Some even emigrated to Texas and California. I have no information on any ancestors before JOHN PETER BILLSTROM, thus I only have four, rather than five, generations to display.