Mary Ann Blackburn was baptised in Almondbury on 21 Feb 1830, daughter of George, a weaver & Mary Ann. Their abode is given as Newsome.
There's another Mary Ann Blackburn baptised in Almondbury 17 April 1825, d/o Grace, but, from the information you gave, it looks as if the first one is yours.
There's an Allen Sykes baptised in Almondbury on 18 May 1823, s/o Benjamin, a clothier & Mary (nee Farrand). Their abode is given as Netherton.
Hope this helps you get a bit further .
Jill