There is a record for a marriage for Richard Pickup Hacking in 1907 Blackburn
Also a death for a Richard P Hacking Darwen Lancashire 1940
There's also a possible marriage in 1902 in Blackburn
And a possible Christening for William Hacking age 6 on the 1911 census
William Hacking bap 6 Nov 1904 St Peter's Church, St Paul's Church, Rishton, Lancashire
son of Richard Pickup & Jane Hacking
If correct family the 1902 marriage could be the correct one as there is a Jane Alston on the list of names