Woorkyngton appears on page 455, of The Place-Names of Cumberland by AM Armstrong, A Mawer, FM Stenton and Bruce Dickins, published by the English Place-Name Society (EPNS 21), in Cambridge in 1950.

The book states that the spelling was found in unpublished State Papers Domestic

The Historical Gazetter of England's Place names uses the same reference, stating that it was written in the year 1569.