‘FF GP’ probably means ‘First Flown by George Pickering’

Air Britain’s military aviation magazine ‘Aeromilitaria’ has recently ran a series of Spitfire I serial-by-serial listings. These are more detailed than the Morgan/Shacklady book. The N3029 one gives the folowing info:
Deld 9 MU 15.9.39; 66 Sqn 28.9.39; Shot down by Bf 109, forcelanded 5.9.40 (P/O RJ Mathers OK); 66 Sqn; Shot down by Bf 109, crashlanded nr Gravesend 14.9.40 (Sgt PH Willcocks OK); AST Hamble 22.9.40; 12 MU 5.3.41; 61 OTU (TO-D) 30.6.41; Landed u/c retracted, Plt Off W.S.Lidner. Cat B. 24.4.42; 1 CRU 23.4.42; AW/CN 20.6.42; 8 MU 23.6.42; 76 MU 15.10.42; Birkenhead 31.10.42; Shipped on SS ‘Peter Mearsk’ bound for Port Sudan 18.11.42; Torpedoed and sunk by U-185 west of the Azores at 39.47 N 41.00 W, Cat E 7.12.42

I also have the Spitfire as the one in which Sgt M. Cameron claimed 1/3-0-0 He 111 on 11.1.40.