Brigadier General William Garnett Braithwaite, (21 October 1870 – 15 October 1937) was a British Army officer who participated in the Boer War and the First World War.
Born in England in 1870, he joined the British Army in 1891. He served with the Royal Welsh Fusiliers during the Boer War, during which he received the Distinguished Service Order. After the war he was an instructor at the Royal Military College. In 1911, he went to New Zealand on secondment to help with the training and administration of the New Zealand Military Forces. Following the outbreak of the First World War, he served as a staff officer in the New Zealand Expeditionary Force. He commanded the New Zealand Division's 2nd Infantry Brigade for nearly two years on the Western Front and on occasion was acting commander of the division. In December 1917, he was medically evacuated to England. After a period of rest, he returned to military duty with the British Army, and ended the war in command of the 16th Infantry Brigade. He retired from the army in 1925 and died in 1937 at the age of 66.

Early life
Braithwaite was born in Kendal, Westmorland, England on 21 October 1870. After completing his schooling at Marlborough College, he attended the Royal Military College at Sandhurst before joining the British Army in 1891.

Military career
Braithwaite was commissioned in the Royal Welsh Fusiliers as a second lieutenant 23 May 1891. He was promoted to lieutenant on 16 May 1894, and to captain on 19 July 1899. From late 1899 to 1902, Braithwaite fought in the Boer War. As well as being appointed to the Distinguished Service Order (DSO), he was mentioned in despatches three times for his service in South Africa. At the closing of the war he returned to the United Kingdom in March 1902, and was appointed adjutant of the 3rd (Volunteer) Battalion of his regiment. He was later assigned to the Royal Military College for a period of time as an instructor.

In 1911, now a major, he was seconded to the New Zealand Military Forces under the command of the then Major General Alexander Godley. Braithwaite was appointed General Staff Officer for the Auckland Military District and later promoted to temporary lieutenant colonel, Godley's Chief of General Staff. At the time, Godley was restructuring the New Zealand Military Forces and creating a Territorial Force to replace the inadequate Volunteer Force. Braithwaite assisted in the establishment of the Territorial Force and was responsible for staff organisation and training. His initial three-year appointment was to expire in July 1914 but earlier that year was extended a further 12 months following a request from the New Zealand government.
First World War
Braithwaite volunteered for the New Zealand Expeditionary Force (NZEF) following the outbreak of the First World War in August 1914. He left for the Middle East as the staff officer responsible for the operational planning of the NZEF. His wife, Gwendolen, whom he married in 1901, and the couple's three children also left New Zealand but to live in England.
Gallipoli Campaign
Following a period of training with the NZEF in Egypt, Braithwaite served as a staff officer in Godley's headquarters. Godley was not only commander of the NZEF but also the New Zealand and Australian Division during the Gallipoli Campaign which commenced in April 1915. Braithwaite fulfilled his duties well and was twice mentioned in despatches for his work during the August offensive. He took ill the next month and required evacuation for medical treatment. He returned to duty in October and the following month took over temporary command of the New Zealand Infantry Brigade when its nominal commander, Brigadier General Francis Johnston, went on sick leave. After the withdrawal of the Allied forces from Gallipoli, Braithwaite returned with the surviving elements of the NZEF to Egypt. He was appointed a Companion of the Order of St Michael and St George for his work during the Gallipoli Campaign.
In December 1915 Braithwaite was promoted temporary brigadier general (his temporary rank of lieutenant colonel was made substantive at the same time) and took command of the newly formed New Zealand (Rifle) Brigade. The brigade consisted of only two battalions at this stage but would be brought up to strength with the arrival of its 3rd and 4th Battalions in March 1916. During this time Braithwaite oversaw the training of his new command. However, within a few months, he was appointed commander of the 2nd Infantry Brigade, one of the three brigades of the newly formed New Zealand Division.





