Interesting page here:

https://www.vwml.org/archives-catalogue/CJS1

Although a relative latecomer to the folk revival, Cecil Sharp became the most high profile and certainly most prolific folk music and dance collector of his contemporaries. He noted down 4,977 tunes in all, including nearly 3,000 songs from England and over 1,500 on his four collecting trips to the Appalachian Mountains in the USA (1915-18). Much of this work was carried out at his own expense or with the help of meagre grants from benefactors, particularly in the USA. He published extensively from his fieldwork and a select bibliography of his works can be found in Still Growing: English Traditional Songs and Singers from the Cecil Sharp Collection (London: EFDSS, 2003).