(1901) Holy Name of Jesus School founded on Illinois Street, Worcester staffed by the Sisters of Saint Anne (SSA)
(1922) Saint Peter’s School founded on Main Street, Worcester staffed by the Sisters of Saint Joseph (SSJ)
(1923) Saint Peter’s School expands and establishes a High School on Main Street, Worcester
(1945) Holy Name of Jesus School expands and establishes a High School on Illinois Street, Worcester
(1963) Marian High School founded on Grove Street, Worcester staffed by the Sisters of Mercy (RSM)
(1967) Holy Name Central Catholic High School opens a new campus on Granite Street, Worcester
(1976) Saint Peter’s High School and Marian High School merge and form St. Peter-Marian Central Catholic High School located at the former Marian High campus
(2020) St. Peter-Marian Central Catholic Jr/Sr High School and Holy Name Central Catholic Jr/Sr High School merge and form the newly established Saint Paul Diocesan Jr/Sr High School at the former Holy Name campus on Granite Street