Bob, I was checking data on the Ellis Island Web Site last night and came across a Knibbs that maybe of interest to you. Francis KNIBBS, from London, England arrived at Ellis Island on August 15, 1912. His age on arrival was 37 years 5 months, and he was single at the time. He travelled to America on a ship named Olympic which sailed from Southampton. I wonder if perhaps this is Francis, the son of Francis Edward KNIBBS and Amelia Unknown from East London? As you identified from the 1881 census, this Francis would have been born in 1875 which is spot on. Don