Malcolm MacLeod
Major-General Malcolm Neynoe MacLeod, (23 May 1882 – 1 August 1969) was a senior British Army officer who served as Director General of the Ordnance Survey from 1935 to 1943. In 1935, he started the retriangulation of Great Britain, an immense task that involved erecting concrete triangulation pillars (trig points) on prominent hilltops throughout Britain. MacLeod can fairly be said to be the creator of the Ordnance Survey in its modern form.
Also recorded as Malcolm Neynoe MacLeod · M. N. MacLeod · M. MacLeod
Malcolm MacLeod

Bassano Ltd · Public domain
- Name
- Malcom MacLeod
- Born
- 23 May 1882
- Died
- 1 August 1969
- Awards
- Companion of the Order of the Bath Distinguished Service Order Military Cross Mentioned in Despatches
- Nationality
- United Kingdom
- Occupation
- cartographer · engineer · military personnel
- Education
- Rugby School · Royal Military Academy and Woolwich
- Honours
- Pollock Medal · Military Cross
- Languages
- English
VALÉORINE Encyclopedia
VALÉORINE documentary reading
Documentary summary
Major-General Malcolm Neynoe MacLeod, (23 May 1882 – 1 August 1969) was a senior British Army officer who served as Director General of the Ordnance Survey from 1935 to 1943. In 1935, he started the retriangulation of Great Britain, an immense task that involved erecting concrete triangulation pillars (trig points) on prominent hilltops throughout Britain. MacLeod can fairly be said to be the creator of the Ordnance Survey in its modern form.
Admitted source layer · organised and presented by VALÉORINE
Note VALÉORINE
Malcolm MacLeod (1882–1969) was a British cartographer, engineer and military personnel. The cartographer was born in British Raj.
Malcolm MacLeod studied at Royal Military Academy, Woolwich and Rugby School. The cartographer worked for British Ordnance Survey and Survey of India.
Languages used include English. Malcolm MacLeod received Military Cross and Pollock Medal.
Composed from admitted, traceable facts · 27 September 2026
VALÉORINE
Reference Check
Propose documentary evidence for Malcolm MacLeod. A contribution is never written directly as fact: identity, source, rights and evidence gates still decide.
Sign in to contribute
World of VALÉORINE
Documentary connections
Only confirmed graph relationships appear here. Images are shown only when their identity and reuse rights both pass the documentary gate.
Documentary evidence
Documentary basis
Authority files
wikidata · Q6742462
In this article
Biography
Biography
MacLeod was commissioned in the Royal Engineers in 1900, serving in India from 1902 until 1914. During the First World War, he commanded the 4th Field Survey Battalion and was awarded the Military Cross in the 1917 New Year Honours. He became Chief Instructor at the School of Artillery, Larkhill in 1920, serving until 1923 when he moved to the Ordnance Survey. After attending the Staff College, Quetta. He was Director-General of the Ordnance Survey in 1935, retiring in 1943.
Key facts
Key facts
• Honorific Prefix — Major-General • Name — Malcom MacLeod • Born — 23 May 1882 • Died — 1 August 1969 • Allegiance — United Kingdom • Branch — British Army • Service Years — 1900–1943 • Rank — Major-General • Unit — Royal Engineers • Commands — Ordnance Survey 4th Field Survey Battalion • Battles — First World War Second World War • Awards — Companion of the Order of the Bath Distinguished Service Order Military Cross Mentioned in Despatches
Life and career
Dated record
Life and career
The full dated record · 2 entries
1882
Malcolm MacLeod was born on 23 May 1882.
1969
Malcolm MacLeod died on 1 August 1969.
Places
Named by the record
Places
Only places the record itself states, plotted where the house gazetteer settles their coordinates. Nothing is inferred from a name or a nationality.
Malcolm MacLeod was born at British Raj.
Birthplace
British Raj.
Birth place
Notes from the source article
Cited by Wikipedia
Notes from the source article
These works are cited by the source article, in its own numbering. They are recorded as its citations, not as sources VALÉORINE has verified.
Bibliography printed in the source article · 2
- Yolande Hodson, 2004, 'MacLeod, Malcolm Neynoe (1882–1969)', Oxford Dictionary of National Biography. Oxford: Oxford University Press.
- Smart, Nick. Biographical Dictionary of British Generals of the Second World War. Pen & Sword. 2005. 1844150496.
References
Citations
References
Each reference names the institution holding it, so a reader may go to the document itself.
reference work
Secondary witness
People, houses and institutions
Knowledge graph
People, houses and institutions
Teachers, collaborators, publishers and institutions recorded against this person, each on a stated basis.
Distinctions
1- Military CrossTerminology
Established from a fact already recorded on a verified source.
Further particulars
Held on the record
Further particulars
Open the remaining particulars
Malcolm MacLeod is recorded with the occupation military personnel. Recorded as cartographer, engineer and military personnel.
The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 16 August 2026.
Elsewhere in Maps and atlases
1,180 published records in this field, each with its sources named.
- Lyman G. BennettAuthor
- MacDonald GillAuthor
- Mahmud Ahmad Hamdi al-FalakiAuthor
- Maia BerzinaAuthor
- Manfred BuchroithnerAuthor
- Manó KogutowiczAuthor
- Manuel de Mesquita PerestreloAuthor
- Manuel Godinho de ErédiaAuthor
Best supported in this field
For owners
Own a work by Malcolm MacLeod?
A specialist will read what you send and tell you what the house can establish, what it cannot, and whether the object is suited to sale. There is no charge and no obligation. The object stays with you throughout; nothing is shipped to us unless it is arranged in writing beforehand.