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1] Suffolk Record Office - http://www.suffolk.gov.uk/sro
2] Archival Sound Recordings - George Ewart Evans Collection. The recordings document rural life and agricultural work in the late nineteenth and early twentieth century, folk beliefs about animals, medicine and witchcraft, folk and popular songs. http://sounds.bl.uk/TextPage.aspx?page=backgroundGeorge%20Ewart%20Evans%20collection
http://ipswich-arts.org.uk/ there is a talk about George Ewart Evans on 8th September in Ipswich. We should maybe contact these people?
3] Folklore, Myths and Legends of Great Britain - Readers Digest
4] East Anglia. Walking the ley lines and ancient tracks. - Shirely Toulson 1979, Wildwood House Limited
5] http://www.suffolklandscape.org.uk/landscape_map.aspx (from Wilfried)