Turner tells NPR's Liane Hansen it was written without "ceremony" in an atticroom where Newton wrote weekly hymns to amplify the message of his sermons.
She was issued with a prohibition notice concerning the use of an atticroom with no stair banisters and limiting the occupation to herself and four others.
Mr Wilkinson had worked for Mrs Garnett at her game farm in Woodlesford for about 10 years and moved into her atticroom as her lodger after an argument with his mother.