John Macleod was part of the team of researchers who isolated insulin in 1922, a discovery which has saved countless millions of lives.
John MacLeod of MacLeod was born in 1935.
John Macleod has written: 'Religion'
John MacLeod - politician - was born in 1913.
John MacLeod - politician - died in 1984.
John MacLeod - basketball - was born in 1937.
John MacLeod - canoer - was born in 1947.
John Norman MacLeod died in 1835.
The motto of Macleod College is 'Be then a wall of brass'.
John James Rickard Macleod was born on September 6, 1876.
John James Rickard Macleod was born on September 6, 1876.
John James Richard Macleod was born on September 6, 1876.
John James Richard Macleod was born on September 6, 1876.