The congregation of St. John’s Episcopal Church on O Street dedicated its Casavant Freres pipe organ Sept. 29 “to the glory of God,” as the Bishop of Washington, Rt. Rev. Mariann Budde led the celebration with St. John’s interim rector, Rev. W. Bruce McPherson, and assistant rector, Rev. Sarah Duggin. Among the many at the church were benefactors Frida Burling and John Van Wagoner. The Canadian company which built the organ will also be sending another of its products to the Kennedy Center.