Stratford News Blood donor clinic being held in St.Marys SHARE ON: Casey Kenny, staff Wednesday, May. 11th, 2022 (Image supplied by CBS). You’re being called on to give the gift of life. Canadian Blood Services is holding a blood donor clinic on Monday at the Pyramid Recreation Centre in St.Marys. It’s taking place from 2 p.m. until 7 p.m. You can click here to book your appointment.