The records of the Baraca Society/ Young Men's Baraca Class/ Baraca Bible Class include minutes dating from 1909 to 1918.

The records of the Ladies of Methodist Church/ Women's Auxiliary include minutes dating from 1889 to 1905, 1909 - 1921, and correspondence dating from 1889 - 1898.

The surviving records of Trinity Methodist Sunday School include: a list of library books dating from 1908 to 1909, attendance records dating from 1911, and minutes and a cash book from the Port Arthur Methodist Sabbath School Committee,dating from 1892 to 1910 .

The records of the Young People's League include minutes dating from 1921 to 1925.

Reference material includes the "Trinity Bulletin"dating from 1912 to 1913.

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).