1872 - Born in Guelph, Ontario on the 30th of November.
1894 - While attending the university he joined the Zeta Psi Fraternity.
- He then studied medicine on a scholarship at the University of Toronto.
1910 - He accompanied Lord Grey, the Governor General of Canada, on a canoe trip to Hudson Bay.
1915 - He was appointed as a field surgeon in the Canadian artillery and was in charge of a field hospital during the Second Battle of Ypres.
- McCrae's friend and former student, Lt. Alexis Helmer, was killed in the battle, and his burial inspired the poem, In Flanders Fields, which was written on the 3rd of May.
- On the 1st of June, he was ordered away from the artillery to set up No. 3 Canadian General Hospital at Dannes-Camiers near Boulogne. C.L.C.
1918 - On the 28th of January, while still commanding No 3 Canadian General Hospital at Boulogne, McCrae caught pneumonia and meningitis and died.