In Britain aviators were awarded their Aviator's Certificate (Pilot's Licence) by the Royal Aero Club of Great Britain. The number of licences awarded up until the beginning of the First World War in August 1914 were:

1910	38
1911	130
1912	214
1913	337
1914	313

The first 100 aviators awarded licences in Britain were as follows. Aviators emboldened are covered in Pigs Might Fly.

1	8 March 1910		John Moore-Brabazon
2	8 March 1910		Hon. Charles Rolls
3	5 April 1910		A Rawlinson
4	12 April 1910		Cecil Grace
5	26 April 1910		George Cockburn
6	26 April 1910		Claude Grahame-White
7	24 May 1910		Alec Ogilvie
8	31 May 1910		Mortimer Singer
9	7 June 1910		Samuel Cody
10	7 June 1910		Lancelot Gibbs
11	14 June 1910		Hon. Maurice Egerton
12	14 June 1910		James Radley
13	14 June 1910		Hon. Alan Boyle
14	21 June 1910		Armstrong Drexel
15	21 June 1910		George Colmore
16	21 June 1910		George Barnes
17	26 July 1910		George Dawes
18	26 July 1910		A V Roe
19	6 September 1910		Arthur George
20	20 September 1910		Richard Wickham
21	20 September 1910		Francis McClean
22	11 October 1910		Keith Davies
23	1 November 1910		M Ducrocq
24	8 November 1910		James Weir
25	8 November 1910		Hugh Watkins
26	15 November 1910		Clement Greswell
27	15 November 1910		John Fulton
28	15 November 1910		Leslie Macdonald
29	15 November 1910		Richard Snowden-Smith
30	22 November 1910		Horatio Barber
31	22 November 1910		Tom Sopwith
32	22 November 1910		Joseph Hammond
33	22 November 1910		Sydney Smith
34	22 November 1910		Archibald Low
35	29 November 1910		Robert Fenwick
36	29 November 1910		Andrew Board
37	29 November 1910		Herbert Wood
38	6 December 1910		Cecil Paterson
39	7 January 1911		Bethell Bouwens
40	7 January 1911		George Hynes
41	7 January 1911		St Croix Johnstone
42	7 January 1911		Henry Cook
43	7 January 1911		Basil Barrington-Kennett
44	7 January 1911		Paul Jezzi
45	7 January 1911		Reginald Cammell
46	17 January 1911		Oscar Morison
47	17 January 1911		James Valentine
48	24 January 1911		Henry Astley
49	24 January 1911		Robert Macfie
50	24 January 1911		Howard Pixton
51	24 January 1911		Herbert Thomas
52	24 January 1911		Sir Victor Sassoon
53	7 February 1911		Geoffrey de Havilland
54	7 February 1911		Daniel Conner
55	7 February 1911		James Martin
56	14 February 1911		Arthur Aitken
57	14 February 1911		Charles Hubert
58	14 February 1911		George Challenger
59	14 February 1911		George Darroch
60	14 February 1911		Archibald Knight
61	14 February 1911		Collyns Pizey
62	14 February 1911		Louis Maron
63	14 February 1911		William Ewen
64	14 February 1911		Gustav Hamel
65	28 February 1911		Quinto Poggioli
66	4 April 1911		Lewis Turner
67	25 April 1911		Waldo Prentice
68	25 April 1911		Eric Gordon England
69	25 April 1911		Henry Fleming
70	25 April 1911		Charles Turner
71	25 April 1911		Charles Rumney Samson
72	25 April 1911		Arthur Longmore
73	25 April 1911		Wilfred Parke
74	2 May 1911		Conway Jenkins
75	2 May 1911		Reginald Gregory
76	2 May 1911		Eugene Gerrard
77	2 May 1911		Edward Fisher
78	9 May 1911		Hubert Oxley
79	9 May 1911		Harold Blackburn
80	9 May 1911		Ronald Kemp
81	9 May 1911		R W Philpott
82	9 May 1911		W H Dolphin
83	9 May 1911		C H Marks
84	9 May 1911		Seaton Massy
85	9 May 1911		Freddie Raynham
86	16 May 1911		James Travers
87	9 May 1911		Edward Hotchkiss
88	9 May 1911		T C R Higgins
89	30 May 1911		W D Beatty
90	30 May 1911		R B Davies
91	30 May 1911		Benny Hucks
92	6 June 1911		Herbert Reynolds
93	13 June 1911		Thomas Sebag-Montefiore
94	13 June 1911		Harry Busteed
95	20 June 1911		Frederick Sykes
96	27 June 1911		G Higginbotham
97	27 June 1911		Herbert Stanley-Adams
98	27 June 1911		J W Pepper
99	27 June 1911		Henry Salmet
100	4 July 1911		Gordon Bell

Other early aviators covered in Pigs Might Fly:

122	29 August 1911		Hilda Hewlett
199	26 March 1912		Billy Hart
211	30 April 1912		John Duigan
297	17 September 1912		Harry Hawker

For further detail, see Wikipedia