I have a Benjamin Sykes, much later than the ones you are looking for, but have you tried the Huddersfield area - Slaithwaite or Almondbury definitely had Sykes families.
Hester Sikes married Robert Lightollers of Rochdale in 1616 at Slaithwaite St James (Chapel-of-Ease for Huddersfield)
Joseph Sykes married Mary Lightowlers in 1743 at Slaithwaite
Edmund Sykes married Rebecca Lightowlers in 1810 at Elland St Mary's (Chapel-of-Ease for Halifax)
All Souls was a Chapel-of-Ease for Halifax Parish Church, it was built 1856 completed 1859
Dave