Father John O'Neill Had much to do with the preparation of the Congress
Below are a few articles which tell of the work he did
September 7, 1946
Subscription in aid of Marian Congress
for more information click here
The Ottawa Journal, 20 January 1947
January 28, 1947
City Will assist in Publicity for Marian Congress - Msgr John O'Neill of Our Lady of Perpetual Help Parish is prepared to assist
http://news.google.com/newspapers?id=Ev8uAAAAIBAJ&sjid=LNwFAAAAIBAJ&pg=5110%2C5286718
The Ottawa Journal, February 3, 1947 including information on the three points below
Archbishop's Pastoral Letter Announces Marian Congress
The Theme of the Congress will be a lasting peace.
Msgr. John O'Neill Speaks at all Churches on the Congress
April 29, 1947
Archbishop Vachon gives $15,000 to aid Congress click here for more information
Ottawa Journal, June 24, 1947 Father O'Neill speaks of possible plans for the large statue of Mary when the Repository is dismantled