Troublous times in Canada: A history of the Fenian Raids of 1866 and 1870, by Capt. John A. MacDonald.
Publication date: 1910
Publisher: W.S. Johnston & Coy, Toronto
In 1866 and 1870-71, to bring pressure on Great Britain to withdraw from Ireland, incursions into Canada by the Fenian Brotherhood (an Irish Republican organization based in the United States) were undertaken in the aftermath of the American Civil War. This is a first-hand account written by Capt. J. A. MacDonald, a veteran of 1866 and 1870.
On-line text at Archive.org:
https://archive.org/details/troubloustimesin00macduoft/page/n7/mode/2up