The surviving records of Trinity Methodist Church include: records of the Sunday School, including a list of library books (1908-1909), and records (1911); records of the Port Arthur Methodist Sabbath School Committee, including minutes and a cash book (1892-1910); records of the Young People's League, including minutes (1921-1925), records of the Baraca Society/ Young Men's Baraca Class/ Baraca Bible Class, including minutes (1909-1918), records of the Ladies of Methodist Church/ Women's Auxiliary/Ladies Aid, including minutes (1889-1905, 1909-1921), and correspondence (1889-1898); and reference material, including the "Trinity Bulletin" (1912-1913).