Founded in 1898 in the Harrison Fire House, All Saints' Church has been an independent parish since 1903. The parish is very active in the community, including donations to the Harrison Food Pantry and work at the Carver Center in Port Chester.
The church facilities also house the Webster Avenue Nursery School.
The parish is led by the Reverend David M. Rider, Interim Rector.
Founded over 100 years ago as the "Hope Chapel", a fire in its buildings forced the parish to move to its current location. The church also sponsors the Harrison Presbyterian Nursery School.
The parish is run by Reverend Tom Unkenholz.
Originally served by priests from neighboring communities, St. Gregory the Great Parish was incorporated in 1900, and the church was constructed in 1902.
After the original church was torn down when Harrison widened Halstead Avenue in 1934, a new Romanesque-style church was built upon a foundation of building stones from the original church.
St. Gregory's also sponsors a chapter of the CYO basketball program.
The parish is run by Msgr. Francis J. Mc Aree, J.C.D.