- Architects.1
- Aristocracy (Social class)2
- Armistice Day.2
- Arthur, Prince, Duke of Connaught, 1850-1942.1
- Asiatic elephant.1
- Astrid, Queen, consort of Léopold III, King of the Belgians, 1905-1935.1
- Astronomers.1
- Astronomical instruments.1
- Astronomical observatories.1
- Astronomy--Observations.1
- Austin, Henry Wilfrid, 1906-2000.2
- Automobile drivers.1
- Automobiles--Crash tests.1
- Automobiles--Design and construction.1
- Automobiles.6
- Award presentations.1
- Axes.1
- Bagpipe music.2
- Baldwin, Stanley Baldwin, Earl, 1867-1947.3
- Ballroom dancing.1