Alphabetical Roll has him as LC. The only entry for an "L C Pearce" in WO338 is for "Louis Courtney Pearce" without a regiment. There is only one Louis Courtney Pearce on British Births and Censuses, who applied for a commission, but did not get it. The Leave Book has him as "J G Pearce" But I cannot find an RAF Officer with those initials. The RIC has him as plain Leonard Pearce but does give date of birth, 5 July 1896, in Yorks, with ties to Berks, M'sex and Hants. The ADRIC register has RAF Lieutenant
I have not been able to be sure I have the right man
1896 Jul 5. Born Yorkshire in RIC register. However the RAF officer Leonard Joseph Pearce was born this exact day in Hampshire, and he is the best candidate
1901 census in Portsmouth
1911 census at 124 Manners Rd, Southsea
1916 Jan 3 Commissioned 2nd Lt in RFC
1917 Nov 1. Promoted Lt
1920 Nov 29. Joined ADRIC with service no 1136, Posted to L Coy
1921 Feb 4. Discharged Cork Hospital
1921 Jan/Mar • married in Southampton, Hampshire to violet Phyllis Robinson
1921 May 16 . Dismissed the force "theft"
1922 Mar 22 Leaves UK for India
Tea Plantation manager in Assam
1934 Jul 25 Divorce. Violet Phyllis Robinson. She remarried in 1935 to Alexander William Rosborough Sharpe
1964 Mar. Died Southampton