08/31/2026
Saint Mary Catholic Church - Dayton, OH.
In 1859 Saint Mary was established on Xenia Avenue to accommodate German Catholics who had outgrown Emmanuel Church.
The original church structure (a 110-by-50-foot brick building) was consecrated on August 15, the feast day of Our Lady of the Assumption. A parish school followed shortly after.
Current Structure and Architectural Landmark
Around 1905 as membership expanded, the original building was demolished, and the present Romanesque Revival church designed by architect John B. Vermon was erected. It features iconic twin clock towers topped with dormered domes and intricate stained glass windows depicting the life of Mary.
During World War II, Army Air Forces pilots flying into nearby Wright Field used the church's distinct twin towers as a key visual navigation landmark.
In the early 1920s, the sanctuary was upgraded with Italian Pietrasanta marble and an Austin pipe organ.