Help please

I am seeking information on two Riddings musicians in preparation for a new book.

I lived for 45 years in Alfreton and now work in Tomsk, Siberia, and am appealing for music by Caleb Martin and Ernest Bettison, who both lived in Riddings.

I am also appealing for information about Ernest Bettison, who was organist and choirmaster at Riddings Church during the first half of the last century.

It’s not known if Bettison composed music.

Stephen Beet