I Am Looking for an Information on a Robert Lemon from Tyrone Ireland

I am looking for any relatives of Reginald "Reg" Lemon, who was the cousin of Beryl, Jack, Arthur, Sharland and Gordon Boothroyd, the nephew of John Sharland (b. 1869) who wrote a will in 1944 when he was living at 47 Kewferry (?) Rd, Northwood, County Middlesex. John sharland's wife was Isabel Maud (don't know maiden name). I don't know what the exact route is from Sharland to Lemon.

Could it have been that his mother was either Ellen Sharland (b. 30 April, 1865), or did either Jane or Elizabeth Sharland remarry from Corry or Phillips to Lemon?