There was no doctor present at his birth according to his birth certificate.
Ontario, Canada Births, 1869-1907 Record info about William Henry Evison
Name: William Henry Evison Date of Birth: 18 Mar 1891 Gender: Male Birth County: Dufferin Father's Name: Urias Evison Mother's Name: Latilia Nodwell Roll Number: MS929_104

The tomb stone at Price's Corners Cemetery reads - EVERSON-William H. Everson, Mar. 18, 1891 - Jan. 1, 1973.  His beloved wife, Gertrude R. McGowan, Oct. 30., 1895 - Feb. 16, 1985.