Yes -- isn't this Kirklees Archives.
I discovered that a whole lot of old Parish records -- NOT registers, were stored here for Mirfield. Churchwardens accounts, Guardians records etc etc and employed a Professional Researcher to speed read them picking out any Illingworth records. (Also to check if MIs were there, which they weren't).
Cost me good money, but it was worth it to me in view of the time I would have spent travelling backwards and forwards and the sheer number of separate sets of records held.