 His paintings can also be found in St. Adalbert's Basilica, Blessed Trinity, the Polish National Cathedral Holy Mother of the Rosary, St. John Gualbert's, and Villa Maria Academy.He also executed murals at Holy Trinity in Niagara Falls, statuary for St. Aloysius in Springville and stained glass windows for St. Barbara in Lackawanna.Mazur also painted many churches outside of Western New York including Rochester, NY, Chicago, Illinois, Detroit, Michigan, Adams, Massachusetts, New Haven, Connecticut, and Trenton and Perth Amboy in New Jersey.