There is a Jonathan Foster, married to Martha, who, according to the 1900 census, immigrated in 1882. He has a couple of what appear to be sons living near him in Iowa, who immigrated in 1884.. It would make sense if they moved there together. I'll look and see if they are on the same ship. There is an Iowa census for 1905 which lists a Jonathan Lester in Otho Twp, Webster Co, the same as Jno Foster. However, I can't seem to find him on the actual pages. Maybe someone else can find him. The link I sent for the Iowa pages states that they have birth records back to the 1880s in Webster Co., and death records for the early 1880-1919 and 1921-1924. It might be worth a query to the local court house.---Genealiza
He makes the trip in 1904, so that wouldn't affect the 1901 census. His age is listed as 40, quite within the limits of one's personal vanity.