Year Date Events
1920   Beginning of missionary work in Tai O (Lantao Island).
15 September The Rock, a Catholic English language monthly, launched.
  Arrival of Maryknoll Fathers, who established their Procure and took charge of the St. Louis Industrial School (former West Point Reformatory and Orphanage) from 1921 to 1926; pastoral work since 1952.
1921   Maryknoll Sisters arrived for educational and pastoral work (MM Convent School in 1925).
1922 19 July Precious Blood Sisters started as independent Congregation from the Canossians (juridically established as such on 19 July 1929); in Sham Shui Po since 1929; the Precious Blood Hospital opened in 1937.
1923 2 February Little Sisters of the Poor arrived to take care of the Home for the Aged in Kowloon (and then in Aberdeen in 1962).
1924 20 February Death of Bishop Pozzoni; Fr. John Michael Spada (施巴達神父) elected Vicar Capitular.
1925 25 January Blessing of St. Margaret Marys Church, Happy Valley (erected as a parish on 25 January 1949).
1926 8 March Fr. Henry Valtorta (恩理覺神父) appointed as 4th Vicar Apostolic (consecrated bishop on 13 June).
1 May New Territories divided into 3 eccl. districts: East (Sai Kung), West (Taipo) and Islands.
3 December Arrival of the Jesuit Fathers, who opened Ricci Hall Hostel (1929), took charge of the South China Regional Seminary (1931) and of Wah Yan College (1932).
December Canadian Sisters of Our Lady of the Angels arrived for educational work (St. Clares School: 1927).
1927 1 October Salesian Fathers arrived: took charge of the St. Louis Industrial School.
1928 19 March Opening of St. Josephs Hospital in Waichou.
Canossian Sisters opened St. Francis Hospital.
4 August Kung Kau Po, a Catholic Chinese language weekly, founded by Fr. Andrew Granelli (顏思回神父).
  Canadian Sisters of the Immaculate Conception arrived for educational work (Tak Sun School: 1928).
1929   Precious Blood Church, Sham Shui Po, opened (divided from Rosary and St. Teresas Churches in 1933, rebuilt in 1937, erected as a parish on 25 January l949).
26 October Ricci Hall, hostel for students, inaugurated.