First construction: builder, Edwin Brady; architect, E. Francis Baldwin, who designed Saint Leo’s in a curious mix of Italianate, Romanesque and classical elements
First pastor, 1881: Reverend Joseph Leo Andreis, native of Turin, Italy, who served for 22 years until his death in 1903
First Mass: January 23, 1881
First altar boys: Eugene Pessagno and Frank Valentini
First children baptized: Leo Francis Bacigalupo and Eugene Leo Pessagno, during the first Mass
First funeral: March 12, 1881, for Carlo Antonio Chiesa
First Confirmation ceremony: January 28, 1883, by Archbishop James Gibbons, with a group of 27 boys and 42 girls.
First assistant pastor: 1903, Reverend Thomas J. Monteverde (ordained 1890, died 1905), son of Genoans
First organist: Mary “Minnie” Malloy, who held this post for over half a century; following her, and serving for 49 years, was Elizabeth D’Adamo Broccolino
First Saint Anthony Festival: June 13, 1904
First order of priests: 1909, Italian-based Pallottines of the Immaculate Conception Province
First electric lamp installed: 1917
First Mother Superior: Sister Mary Margaret
First Little Italy Little League: 1957; its first commissioner was Lou Catalfo
First Girl Scout Troop: 1965
First Pizza Dance: 1966