The book "The Farthest North of Humanness" published by Macmillian in 1985 is a collection of Grainger's letters 1901-1914. In his letters to his lover Karen Holten, he is explicit about his interest in S & M, with diagrams. The relationship with his mother, Rose, was very close but there is no proof that it was incestuous.

Grainger's biography was written by Bird (can't think of his other name).

He also collected a lot of songs in Gloucestershire and Worcestershire, apart from his well-known Lincolnshire work.

Gwilym