Geoffrey Sadler was born in Mansfield. He was educated at his local school and then moved on to the Boys Grammar School in the area. He later obtained his A.L.A. qualification at Manchester College. Since 1985 he has held the position of Assistant Librarian of Local Studies at Chesterfield Library. He has had many previous publications, as author, editor and contributor. Geoff was editor of 'Aspects of Chesterfield' published by Wharncliffe Books in 2002.