Hello,
yes I have discounted that, Mary Ann too young and born Middlesex.
Children are Michael b 1856, David b 23rd Nov 1858 Pimlico, Mary b.1861, John b.25th April 1864, William b.1866, Catherine b. 1869. John and David definitely survived to marry and have children. Mary we think died young, the others certainly did. Places of birth highly likely Marylebone, Pimlico, Chelsea.