In 1919, he worked briefly in anatomy at
Newcastle University before moving to
Canada after being appointed to the Chair of Anatomy at the
University of Manitoba at the age of 33. In 1930, he was appointed to the Chair of Anatomy at the
University of Toronto which he served for 26 years until his retirement in 1956. Grant was a very popular teacher, year on year his students voted his class in anatomy as the most popular in the faculty. After retirement he continued on as the Curator of the Anatomy Museum at the University of Toronto. In 1961, he was appointed part-time to teach anatomy as a visiting professor of Anatomy to
UCLA which he continued until 1970. At UCLA, he was so beloved by his students that they devoted an annual Freshman Christmas Party to him. ==Honours==