Trinity Episcopal Church is one of the oldest Episcopal churches in Texas. It grew from work in the Caddo Lake area in the 1840s by the Rev. William Steel of Louisiana and from appeals for priests made by Frances Cox Henderson, wife of diplomat, Governor, and U.S. Senator J. Pinckney Henderson, to the church in the United States. Trinity parish was founded on Jan. 4, 1851, with 22 members by the Rev. Henry Sansom (1821-1903), who served as rector from 1851 to 1855. Its original membership included E. G. Benners, later a priest, and the Key family, who remained in the parish a century later. Communicants included Confederate Generals Benjamin Huger and Louis T. Wigfall and twentieth-century jurist T. Whitfield Davidson. The Rev. Edwin A. Wagner, rector intermittently from 1859 to 1875, the Rev. C. C. Kramer, from 1909 to 1914, the Rev. C. S. Sargent, from 1914 to 1921, and others strengthened the parish spiritually and advocated a permanent church building to replace successive early structures. The present church was built in 1925-26, when the Rev. Charles S. Monroe was rector, and it was dedicated by Bishop Clinton S. Quin on July 25, 1926. Its architect was J. W. Northrup, Jr., of Houston. The Rev. Henry F. Selcer, who served from 1930 to 1956, held the record for the longest service as rector. In 1972 the parish had 508 members, and its day school served the community.