Yes I saw that and Tudor Street is the address of the child Thomas H buried in the grave.
Thomas Harold, Lilian and Ernest (also in the grave) have mother’s name Cooper.
The address has Harvey Ashton and family in 1901.
Ernest shows an address of Ashton Road in 1901.
As Lil* is living in Ducie Street (off Ashton Road, Bardsley) in 1901 census with Alfred and Elizabeth Booth, it is difficult to connect this Lilian to Lilian Hackney as ‘Lilius’ Cumberbatch has mother Amelia.
I have given the OP a sighting for John Hackney with the right birth of date but they would like to prove it so this Cumberbatch twist might be a step too far.

Added:
Just checked Ashton Road becomes Oldham Road near Ducie Street.
Tudor Street was quite close to Ashton Road, Oldham and Scott Street (so Bk Scott Street too) are off Ashton Road on the other side, close by. Nellie and Lilian Hackney’s address is Bk Scott Street.
Of course Ashton Road is a very long road

The birth certificate of Ellen Hackney would help.