How do l find my father private garnet leroy taylor royal canadian army service corps?

Contact your local office of the Red Cross. They have been tracking down soldiers since World War I. You also might try to track down his regiment on the Internet using the search ons of Yahoo or Google. I know there are listings for RAF squadrons of WWII. Surely they have infantry regiments too. Once you have found his regiment, it should be easy to contact the CO and find out what you need to know.