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Sir George Biddell Airy (27 July 1801 – 2 January 1892) was an English mathematician and astronomer, and the seventh Astronomer Royal from 1835 to 1881. His many achievements include work on planetary orbits, measuring the mean density of the Earth, a method of solution of two-dimensional problems in solid mechanics and, in his role as Astronomer Royal, establishing Greenwich as the location of the prime meridian.

Viktor Ambartsumian (1908–1996) was a pioneering Armenian astrophysicist renowned for his groundbreaking work in theoretical astrophysics and cosmology. He is best known for discovering the existence of stellar associations, which revolutionised understanding of star formation. Ambartsumian also challenged the then-prevailing notion of a static universe, advocating for dynamic and evolving astronomical systems. As the founder of the Byurakan Astrophysical Observatory in Armenia, he played a crucial role in developing astrophysics in the Soviet Union. His influence extended globally through his leadership as President of the International Astronomical Union (1961–1964).

Clement Walker Andrews (January 13, 1858 – November 20, 1930) was an American librarian. He graduated from Harvard University in 1880 and served as an instructor in chemistry at the Massachusetts Institute of Technology from 1883 to 1892. From 1889 to 1895, he also served as the librarian at MIT. Andrews became the first librarian of the John Crerar Library in 1895 and held that position until his retirement in 1928. His contributions to the field of library science include introducing catalog card exchanges between libraries and publishing printed lists of current periodicals. He served as president of the American Library Association from 1906 to 1907 and as president of the American Library Institute from 1922 to 1924.