Samuel Cowan

Mary Queen of Scots and Who Wrote the Casket Letters?; Volume 2

The Ruthven Family Papers; the Ruthven Version of the Conspiracy and Assassination at Gowrie House, Perth, 5th August, 1600, Critically rev. and Edited by Samuel Cowan

The Royal House of Stuart

The ancient capital of Scotland

The Gowrie Conspiracy, and its official narrative

Last Days of Mary Stuart

Sergeant York and His People

Last Days of Mary Stuart and the Journal of Bourgoyne Her Physician

Ruthven Family Papers