Harry Leslie Smith has died.
The prominent anti-poverty activist, who authored several books on the Great Depression, the Second World War and postwar austerity died early this morning in a Belleville hospital.
Smith, who lived through the Great Depression and fought in the British air force during the Second World War, has been a lifelong advocate for the poor.
His son has been issuing regular updates on his father's twitter and has generated nearly 250,000 followers.
Online tributes have been pouring in for him as he received treatment in an intensive care unit in Belleville, Ont., after his family said he suffered a fall.
Notables, including Prime Minister Justin Trudeau, actress Mia Farrow and British Labour Party leader Jeremy Corbyn, are among the supporters who have extended their well wishes to the famed activist.
His son John has said on Twitter that his father expressed his appreciation for the support he's received.