John Jacob and his older sister, Barbara, arrived in New York on 11 June 1866 via the ship Caroline. As head of household, only John Jacob is listed on the overland company records (listed as "J. Boscar), however, the notation that he purchased two adult food rations indicates that Barbara was with him for this part of the trip as well. The rest of the family followed from Switzerland two years later.

Birth and death dates listed were found in a personal, online family history record (such as Family Tree, Ancestry, or My Heritage), without any accompanying documentation. Further research is needed to verify its accuracy.