David McKenzie Robertson pursued a career in education before taking very early retirement to concentrate on more congenial pursuits. A lifelong resident of the village of Longniddry in East Lothian, he has previously published books on local history and East Lothian witchcraft.
He is also a prolific "Composer of Scots Songs" (see website www.davierobertson.co.uk ).
His book "From Roucan to Riches" traces the rise of the Glassell family from humble peasant farmers to country gentry, aristocrats, war heroes and millionaires.
"A calendar of Musselburgh witchcraft" published in spring 2021 includes a previously unknown witchcraft trial from the recently rediscovered court books of the East Lothian town. This has been included with all known Musselburgh witchcraft cases to give a comprehensive account of witchcraft in the town through the 17th century.