The MI disc is from Calderdale FHS, covers 15,000 gravestones in 38 graveyards. I've found it invaluable for my Appleyard clan.
Not sure about these, but:
Hebden Bridge Cross Lanes. John Cockroft of New Road Bottom, 24 April 1850 aged 80 and Sarah 6 February 1851 aged 73.
Sowerby Steep Lane. John Cockroft of Cob Castle, Sowerby 3 October 1860 aged 86 and Sally 17 May 1846 aged 65 plus John 20 April 1826 aged 10, George died in infancy, Henry of Nab End 23 August 1868 61, and Sarah his widow 4 January 1888 aged 71.
Of course if they didn't have a headstone then they wouldn't appear in this list, although some unmarked graves have been noted on the CD.
Best regards
BumbleB