If you mean in the area of sword dance collecting, Maud Karpeles' Cecil Sharp - His Life And Work has information on the collection of sword dances. In summary: He saw his first (Kirby Malzeard) July 1910. This was the "prelude to may more excursions to the north of England in search of Sword Dances, in some of which he was accompanied by George Butterworth. As a preliminary, he sent a reply-paid postcard to the incumbent of every parish in Yorkshire, Northumberland and Durham asking if they had ever seen or heard of any such dances...He published 14... and his notebooks contain further examples and fragments.". (If you don't have access to a copy I can scan and send you the relevent pages).

If you mean his work in the geographical area, he did collect a few songs there. (I once looked up his notebooks to see if he collected more songs in Whitby than the version of Stowbrow in the published collection - there was also The Lincolnshire Poacher and The Ship That Never Returned as I recall).

Mick