La Marine des États-Unis avant la guerre et la marine actuelle, par M. Donald Mc Kay, traduit de l'anglais, par M. Cavelier de Cuverville,...
An old Scots brigade, the history of Mackay's regiment [raised by D. Mackay, 1st baron Reay] now incorporated with the Royal Scots
Two Unpublished Letters from James Graham to Sir Donald Mackay of Far. By Dr. George Mackay. Reprinted from the "Juridical Review," etc
Arguments of Donald Mackay and Theodore W. Dwight Before the Committee of the Assembly on Railroads, Upon the Bill to Annul the Charter of the Broadway Surface Railway Company, April 14, 1886