Marriage cert for Henry Margison and Nancy Kitchen shows his father as Thomas Margison, Bleacher. So this Henry is not the son of John and Alice.
"England, Manchester, Parish Registers, 1603-1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QK1H-CRJF : 18 December 2015), Henry Margison and Nancy Kitchen, 05 Apr 1875, Marriage; citing St Thomas, Heaton Norris, Lancashire, England, Archives Central Library, Manchester; FHL microfilm 4,500,039.
