Your Samuel Allcock is not the person I described in my original posting. There is a 30 year difference in their ages and the parental details do not match. Despite this mismatch, I am interested in your line of inquiry and we may have an area of common interest. Do you know any more about John Allcock? Have you found any references to him that predate the 1861 census? I think that there probably is a connection but it may be difficult to establish conclusively. If we can establish a connection, this will enable you to trace this line back several more generations.