Regimental Number: 101410
Rank: Private
Branch: 66th Battalion; 1st Depot Battalion, British Columbia Regiment
Rosario was born in Kamloops, British Columbia on November 19, 1896. In 1912/1913, he filed on two homesteads at NW 9-78-14-W6 and NW 4-78-14-W6. Rosario enlisted in the Canadian Army on September 28, 1915, but was discharged on April 12, 1916, having been found medically unfit (cause uncertain). Then, in August of 1918, Rosario was drafted into the army. He served only in Canada. On December 13, 1918, he was discharged from the Canadian Army a second time.