About Assumption · New Haven, Missouri
Assumption Parish (officially the Church of the Assumption of the Blessed Virgin Mary) is a Roman Catholic parish in New Haven, Missouri, in Franklin County, part of the Archdiocese of St. Louis. Located at 603 Miller Street, the parish serves more than 280 families in this small river-town community on the Missouri River. It is currently pastored by Reverend Jeffrey A. Maassen, with Father Timothy J. Henderson and Father John C. Deken serving as associate pastors. The parish shares its pastoral team with neighboring St. Francis Borgia Parish in Washington, MO, and runs its own parish school, Assumption Catholic School (BVM).
- Established
- 1858
- Patron
- The Blessed Virgin Mary (under the title of her Assumption)
- Rector
- Father Tim Hendersdon
- Diocese
- Archdiocese of St. Louis (Metropolitan Archdiocese)
Why belong here
Assumption Parish is a tight-knit Catholic community of more than 280 families rooted in a small Missouri River town and faithful to its 19th-century German-immigrant heritage. It offers daily and weekend Mass with the traditional Roman Rite, Friday Eucharistic Adoration, and regular Saturday and Friday confession times. Worship is supported by a parish school (Assumption BVM Catholic School) and a clergy team shared with the larger neighboring St. Francis Borgia Parish in Washington, giving the parish real stability and depth while keeping a small-town feel.
Mass times at Assumption
Weekly Mass schedule
Confession times
- Saturday: 4:00 pm – 5:00 pm
- Friday: 8:00 am – 9:00 am
Adoration times
- Friday: 8:00 am – 9:00 am (Eucharistic Adoration)
Parish History
Assumption Parish traces its origins to 1858 as St. Mary Magdalen at Miller's Landing, a mission of Washington, Missouri. From 1863 until 1894, the mission was served by the Jesuits of Washington. In 1894, a new church was built and the parish was renamed the Assumption of the Blessed Virgin Mary. The current brown-limestone church was constructed in 1923 to replace an earlier frame building.
- 1858 — Parish established as St. Mary Magdalen at Miller's Landing
- 1863–1894 — Served by Jesuits from Washington, Missouri
- 1894 — New church built; renamed Assumption of the Blessed Virgin Mary
- 1923 — Present brown-limestone church completed
- Founding families largely from Borgholzhausen area, County Ravensberg, Germany
Clergy & Staff
Assumption is currently served by a pastoral team shared with St. Francis Borgia Parish in Washington, Missouri. Father Jeffrey A. Maassen was appointed pastor in 2023, succeeding Father John C. Deken, who became a Senior Associate Pastor of the same parishes.
- Reverend Jeffrey A. Maassen, J.D. — Pastor
- Reverend Timothy J. Henderson — Senior Associate Pastor
- Reverend John C. Deken — Senior Associate Pastor
Assumption Catholic School (BVM)
Assumption Parish operates its own parish school, Assumption Catholic School, often referenced as Assumption BVM School. The school's mission statement describes a community 'United in Christ and guided by the spirit of our Blessed Mother' dedicated to forming the whole person through faith and knowledge.
- Parish school for Assumption and surrounding families
- Enrollment open to new students/families
- School Advisory Board governs in coordination with parish leadership
- Includes 8th-grade graduation and annual awards/scholarships program
Diocese & Vicariate
Assumption Parish is part of the Metropolitan Archdiocese of St. Louis, within the Western Vicariate, Deanery 5, which includes Franklin County parishes and the St. Louis County parishes west of I-270, south of I-64, and north of I-44. The dean is Very Reverend Monsignor Patrick Hambrough.
- Archdiocese of St. Louis
- Western Vicariate, Deanery 5 (Franklin County parishes)
- Dean: Very Reverend Monsignor Patrick Hambrough, V.F.
Visit & Contact
Parishioners and visitors can reach the parish office at 603 Miller Street, New Haven, MO 63068. The main telephone number is (573) 237-3372 and the listed email is [email protected]. The official parish website is assumptionparishnhmo.com.
- Address: 603 Miller St., New Haven, MO 63068
- Phone: (573) 237-3372
- Email: [email protected]
- Website: http://www.assumptionparishnhmo.com/
Genealogy & Sacramental Records
Sacramental records for Assumption Parish are among those catalogued in the St. Louis County Library's Guide to St. Louis Catholic Archdiocesan Parish Records and the Catholic Parish Jubilee Histories collection. Records include baptisms from the early 1900s, marriages, deaths, First Communion, and Confirmation.
- Parish records referenced: CPJH-Roll 12 Item 8 — Assumption Church 1853–1967
- Roll 11 Item 23 — Assumption of the Blessed Virgin Mary Church 1926
- Records in English and Latin
- Microfilmed records available via the Family History Library
Pastors & rectors through the years
- Reverend John C. Dekenthrough 2023
Formerly pastor of Assumption Parish in New Haven and St. Paul Parish in Berger; in 2023 was reassigned as Senior Associate Pastor of Assumption and St. Francis Borgia.
- Reverend Jeffrey A. Maassen, J.D.2023–present
Appointed pastor of St. Francis Borgia (Washington) and Assumption (New Haven) in 2023, coming from Sacred Heart Parish in Valley Park.
- Reverend Timothy J. Henderson2023–present
Appointed Senior Associate Pastor of both St. Francis Borgia and Assumption in 2023, coming from Holy Martyrs of Japan Parish.