Name
- Arlès-Dufour, Jean Barthélemy, French industrialist1
- Armengaud, senior, engineer1
- Atkinson, George, of Add MS 371871
- Atkinson, William, of Add MS 371871
- Aubert, of Marseilles1
- Audiganne, Amand, Minister of Agriculture (1848)1
- Austin, Alfred, Secretary to the Board of Works1
- Auvarey, captain of a Sardinian steamer1
- Babbage, Henry Prevost, army officer; son of Charles Babbage, 1824-19181
- Bachhoffner, George Henry, scientist, inventor, 1810-18791
- Baird, George Husband, Scottish Church minister; educational reformer; Principal of Edinburgh University, 1761-18401
- Balbo, Cesare, Count, correspondent of Charles Babbage, fl 18401
- Banfield, Thomas C., statist; correspondent of Charles Babbage, fl 18501
- Banks, Joseph, 1st Baronet of Revesby Abbey, naturalist and patron of science, 1743-18201
- Banks, Joseph, 1st Baronet, botanist, naturalist and patron of science, 1743-18201
- Barbier, A., French engineer; correspondent of Charles Babbage, fl 18621
- Bard, William, actuary, of New York; correspondent of Charles Babbage, fl 18321
- Baring, Francis Thornhill, 1st Baron Northbrook, politician, 1796-18661
- Barry, Charles, Knight, architect, 1795-18601
- Bass, Michael Thomas, brewer; politician, 1799-18841