This 2016 monument of James Till PhD and Ernest McCulloch MD, created by artist Ruth Abernethy, resides at the MaRS Discovery District, 101 College Street.

James Till PhD and Ernest McCulloch MD are globally recognized as the Fathers of Stem Cell Science for their research in the 1960s at the Ontario Cancer Institute and Princess Margaret Hospital in Toronto. They received Canada’s Gairdner Award in 1961, and were inducted into the Canadian Medical Hall of Fame in 2004. They also won the Albert Lasker Award for Basic Medical Research in 2005.