The historical archives of the Grenadier Guards are held by the National Archives and the National Army Museum.
The National Archives
Attestations (1795-1838), enlistments and discharges ledgers, casualty books, posting books, NCOs succession books, nominal rolls, statement of services of officers (1801-1918), regimental numbers, marriages and baptisms books (1804-1908).
Please note that the records of service of individual soldiers are held by the Ministry of Defence – see Find a Grenadier Ancestor.
List of ledgers and books: Gren Gds archives at TNA
Marriages and Baptisms: Marriage and baptism books of the Grenadier Guards
The National Army Museum
The Grenadier Guards collection at the National Army Museum consists of ledgers, correspondence and letter books, order books, memoirs, diaries, medal rolls, courts martial (1747-1948), and photographs.
The archive catalogue can be viewed on https://collection.nam.ac.uk/inventory/objects/. Enter Grenadier Guards under ‘Regiment’ and select archives only [you can deselect the other categories by simply clicking on their headings].
Brigade and Regimental Orders
Click here for a searchable index: Gren Gds Index to Regimental Orders