The following is a pastoral-planning timeline for the churches of Elmira.
1982 — St. John the Baptist and St. Cecilia cluster, with one pastor serving both churches.
1990 — Ss. Peter and Paul joins the St. John the Baptist/St. Cecilia cluster.
1994 — St. Anthony clusters with St. Patrick.
1994 —St. Casimir clusters with St. Charles Borromeo.
1998 — St. John the Baptist and St. Cecilia churches close.
2006 — Ss. Peter and Paul joins the St. Anthony/St. Patrick cluster.
2006 — Our Lady of Lourdes joins the St. Casimir/St. Charles Borromeo cluster.
2007 — Ss. Peter and Paul, St. Anthony and St. Patrick become Blessed Sacrament Parish.
2008 — St. Anthony Church closes.
2009 — Our Lady of Lourdes, St. Casimir and St. Charles Borromeo become Christ the Redeemer Parish.
2017 — Blessed Sacrament, Christ the Redeemer and St. Mary Southside parishes become a single cluster.
2018 — The six-church cluster becomes a single citywide parish.
