Hello, I am trying to track David Billings b.1821 he was married to Catherine and had at least 6 kids, William b.1856, Adam b.1858, Henry b.1860, Diana (or Dianaugh) b.1863 Eliza b. 1865 and Robert b.1868. I found them on the 1871 Census for Dundas Co. Ontario but an unable to find them on the 1861 or 1881 census and can't seem to find any marriage records for the children.

All help will be appreciated.