Hi Mary: I forgot to give you their father's names.
William Day's father was James Day. He was deceased in 1871. Mary Ann Cray's parents names were Michael Cray & Mary Ann. The Cray's lived at 13 Chequers Yard between 1871 &1881.Michael Cray died in the Dec. Qtr of 1875.
I see that you are looking for DAYs too.