Consists of letters and documents covering the life and work of Sir Lawrence, primarily relating to his time working for the Royal Air Force during World War I and World War II.

Consists of letters received or sent by Sir Lawrence in the years 1912 - 1945, largely concerning his time and duties with the Royal Air Force during World War I and World War II.

Consists of letters received or sent by Sir Lawrence before the outbreak of World War I.

Discusses Sir Lawrence when he was a pupil at the college, commenting that he passed his Public Examination of the Melbourne University in seven subjects. Adamson remarks that Sir Lawrence was made Prefect at College and describes him as a 'thoroughly trustworthy and honourable boy'.

Consists of letters sent home by Sir Lawrence during World War I.

Sir Lawrence relates his first experiences flying alone, admitting he was 'desperately nervous' but did 'fairly well', and that it made him appreciate flying with an experienced pilot.

He remarks that the biggest difficulty was starting the plane on the ground with a Maurice Farman plane and comments that he must go to bed early to be up for duty at 6.30 the following morning, and promises to visit his mother at first chance.

Written from The Kings Head hotel, Harrow on the Hill, London.

Sir Lawrence thanks his mother for a parcel containing tinned goods, marrow glaces and chocolate.

He describes dealing with a seemingly broken engine, and mentions pamphlets he has seen about Cambridge men serving in the war and a sermon by Arthur Gray. He comments on developments in communication and field telephones, and conditions in the trenches.

Sir Lawrence discusses 80 minutes of flying trying to patrol the trenches, which was hindered by a big bank of cloud and snow storms.

He gives thanks for the 'wolley helmet' sent by his mother and the "letter from Granny".

Sir Lawrence discusses a letter and Christmas card sent to his mother by his flight sergeant as a thank you for socks sent over.

He describes his morning spent doing mixed patrol and photography, during which time his propellor broke and he was confronted by German planes known as ""two tails"". He remarks on firing rounds at the German planes, and they fly off in a 'most extrodinairy case of German lack of enterprise'. He includes detailed drawings and annotations of the ""two tail"" planes.

Sir Lawrence discusses doing a reconnaissance, being put up by a Brignole Headquarters and being pleased at the "amazing price of buck".

Written from France.