The Carlin Family Papers contain the correspondence of Sarah Carlin (nee Brooke) and her husband Frederick Benjamin Carlin, their daughter Ethel Maud 'Nettie' Darling and her daughter Mary 'Molly' Flewell-Smith. The papers were collected together by Oriel C. Morris, the daughter of Mary Flewell-Smith.
The earliest correspondence contained here are letters from friends and family received by Sarah Brooke before her marriage to Frederick Benjamin Carlin. The Carlins emigrated to South Australia in ca. 1849 and the correspondence contains letters written and received by them and from their families in England, including letters Sarah Carlin sent to her parents William and Dinah Brooke. The papers also contain letters received by the Carlins daughter Ethel Maud 'Nettie' Darling (nee Carlin). This includes letters from her husband Charles Alfred Darling and her daughter Mary Ethel Carlin 'Molly' Flewell-Smith (nee Darling) . There is also some genealogical material compiled by Oriel Morris (nee Flewell-Smith) tracing the Carlin (1792-1850) ; The papers also contain a couple of unidentified photographs, Masonic membership certificates from London as well as a facsimile issue of the 'London Post' from 1745.