Consists of letters and field cards sent by Thomas Baker Brown to his family at home while he served as a soldier during World War I. Also consists of one letter sent to Thomas Baker Brown from his father.

Consists of 307 letters which were sent to the Brown family from Thomas Baker Brown while he served as a soldier in World War I. Letters cover Thomas Baker Brown's training in England, his time on the front in France, and his time as a Prisoner of War in Germany. Also consists of one letter sent to Thomas Baker Brown from his father which was returned from the front because Thomas Baker Brown was reported missing. Some of the letters are accompanied by transcripts produced by Thomas Baker Brown's family.

Consists of two letters and five field cards written by George Brown, the brother of Thomas Baker Brown, to his family whilst serving as a soldier in France during World War I.

Consists of the correspondence received by the Brown family from various friends and relatives during World War I.

Consists of 10 letters from Alfred Douglas Mason, Thomas Baker Brown's cousin, to the Brown family. Also consists of 3 letters from Alfred Douglas Mason's parents to the Brown family concerning the death of Alfred Douglas Mason.

Consists of 9 letters and 11 field cards sent to the Brown family during World War I from various friends and relatives.

Consists of correspondence between the Brown family and official bodies during World War I, some of which concerns Thomas Baker Brown being awarded the Military Medal as well as him being taken Prisoner of War.

Consists of correspondence between the Brown family and official bodies in relation to Thomas Baker Brown being awarded the Military Medal during World War I.

Consists of correspondence between the Brown family and official bodies concerning Thomas Baker Brown being taken a Prisoner of War during World War I.

Consists of general correspondence between the Brown family and official bodies during World War I.