Summary of sources searched: so I dont redo them

British Library - India Office Records

The National Archives (Public Record Office) * indicates information found

War Office and predecessors: Indexes to Out-letters
WO2/1, WO2/2, WO2/36, WO2/37, WO2/38

War Office: Secretary-at-War, Out-letters (Admin 1796)
WO4/163, WO4/164, WO4/164

War Office: Secretary-at-War, Out-letters
(1795) WO4/298
(1796) WO4/299
(1805-1810) WO4/514
(1810-1813) WO4/515
(1813-1815) WO4/516
(1815-1816) WO4/517
(1817-1820) WO4/518
(1820-1836) WO4/519

Commissary General of Musters Office and successors: General Muster Books and Pay Lists: 33rd Foot 1st Battalion
* (1791-1804) WO12/4804
* (1808-1809) WO12/4805
* (1810) WO12/4806<
* (1811) WO12/4807
* (1812) WO12/4808

Commissary General of Musters Office and successors: General Muster Books and Pay Lists: 52nd Foot 1st Battalion
* (1780 - 1797) WO12/6241
* (1798 - 1799) WO12/6242

Commissary General of Musters Office and successors: General Muster Books and Pay Lists: 56th Foot 1st Battalion (1813)
* (1811) WO12/6556
* (1812) WO12/6557
* (1813) WO12/6558
* (1814) WO12/6559
* (1815) WO12/6560
(1816-1817) WO12/6561 - only paylists of non-commisioned

Commissary General of Musters Office and successors: General Muster Books and Pay Lists: 56th Foot 2nd Battalion (1813)
* (1811) WO12/6625
* (1812) WO12/6626
* (1813) WO12/6627

War Office and predecessors: Secretary-at-War, Secretary of State for War, and Related Bodies, Registers
(1796/97)W025/225
* (1796/97) W025/226 - confirms Lawrence as Ensign

War Office and predecessors: Secretary-at-War, Secretary of State for War, and Related Bodies, Registers: 52nd Foot
(1783-1806) WO25/405

War Office and predecessors: Secretary-at-War, Secretary of State for War, and Related Bodies, Registers RETURNS OF OFFICERS' SERVICES
( -1828) WO 25/770 ( -1828) WO 25/771

War Office and predecessors: Secretary-at-War, Secretary of State for War, and Related Bodies, Registers: Reports of Officers' Marriages
(1799-1843) WO25/3239

Office of the Commander-in-Chief: Memoranda and Papers
(1796) WO31/47
(1796) WO31/48
(1796) WO31/49
(1796) WO31/50
(1796) WO31/51
(1796) WO31/52
(1796) WO31/53
(1796) WO31/54
(1796) WO31/55
(1806) WO31/219
* (1819) WO31/478 - this confirmed his Brevet to Major

Certificates of births, baptisms marriages and deaths extracted from old personal papers
(1777-1892). WO32/8905

Birth and baptismal certificates extracted from old papers
(1790-1888) WO32/8914

Marriage certificates extracted from old papers
(1814-1872) WO32/8918

War Office: Officers' Birth Certificates, Wills and Personal Papers
(1755-1908) WO42

War Office: Secretary-at-War, Correspondence
(1780-1874) WO43/1059

Royal Hospital Chelsea: Soldiers Service Documents: 56th Foot: Mas - Pyn
(1760-1854) WO 97/693

War Office and predecessors: Commissariat Department: Out-letters: Mauritius and St. Helena
(1810-1817) WO58/110

War Office: General Sir Robert Brownrigg, Military Secretary to Commander in Chief, Quartermaster General and Governor of Ceylon (Sri Lanka): Papers
(1795 Apr.-1798 Aug) WO133/1
(1798 Aug.-1805 Sept) WO133/2
(1797) WO133/3

Home Office: Military Entry Books
(1796-1797) HO51/10 (Only Militia not relevant)