A few letters and documents of James Gartland; his son Bishop Francis Xavier Gartland of Savannah and daughter Mrs. Bridget M. Robbins; and Joseph A. Gartland (relation undetermined).

James Gartland material (ca.1807) includes letters concerning and the manuscript of his book, The Commercial Shamrog, an almanac containing conversion tables directed at merchants in the newly unified United Kingdom; and a lengthy letter of spiritual advice written to "My Dear Child" (n.d.).

Bishop Gartland's correspondence (1820-1854) is with his sisters, a Mr. Des Moullins, and a few others; most of it concerns his 1851 trip to Ireland and the construction and decoration of objects for the altar. Mrs. Robbins also received letters (1852-1872) concerning the transfer of Bishop Gartland's remains to Philadelphia. Joseph A. Gartland contributed a few genealogical notes (1982).