I've just started to research the family name 'Redhead'. My great-grandmother was called Louie Redhead (B:1896 Haslingden, Lancashire, England).
Her father was called James Redhead (B:1843 Doddington, Cambridge, England) and mother: Elizabeth Redhead maiden name possibly Gash.
I've also found another family of Redhead's that moved from Cambridge, England to Rawtenstall, Lancashire, England.This seeming to be too great a coincidence for them not to be related.
This family I've traced back to being Matthew Redhead who married Mary Redhead Maiden name: Reddick in 1844, Cambridge, England. They had a son called Simon Peter Redhead who married Alice Marie Redhead, maiden name Nuttall. they had at least three children all born in Lancashire: Simon Peter, James Thomas and Grace. These quite likely my great-grandmother's cousins.