Egon Sharpe Pearson (11 August 1895 – 12 June 1980) was a renowned British statistician and the son of Karl Pearson and Maria, née Sharpe. Following in his father's footsteps, Pearson became a prominent figure in the field of statistics. He received his education at Winchester College and Trinity College, Cambridge, and later assumed the role of professor of statistics at University College London. He is most celebrated for his contribution to statistical hypothesis testing, particularly for his development of the Neyman–Pearson lemma. Pearson's influence extended to his role as President of the Royal Statistical Society and his significant contributions to statistical inference and methodology. Throughout his life, he made substantial contributions to the application of statistical methods in various fields. Pearson's works and papers have been preserved at University College London, reflecting his lasting impact on the field of statistics. His life was marked by personal tragedy, including the loss of his first wife, Eileen Jolly, and his second wife, Margaret Theodosia Scott. Pearson's legacy continues to be honored and remembered in the statistical community.

Egon Wellesz (21 October 1885 – 9 November 1974) was an Austrian-born composer, teacher, and musicologist, later naturalized as British. He was known for his work in Byzantine music. Born in Vienna to Hungarian Jewish parents who practiced Christianity, Wellesz initially pursued a law education at the University of Vienna, as per his parents' wishes. However, his passion for music had been ignited at the age of 13 when he attended a performance at the Vienna State Opera. He began studying music while attending law classes and formed important connections with figures like Arnold Schoenberg and Rainer Maria Rilke. His early research focused on Baroque opera, and he married Emmy Stross in 1908. Wellesz joined the faculty of the University of Vienna as a lecturer in music history in 1913 and developed a lifelong interest in Byzantine music, inspired by discussions with art historian Josef Strzygowski. His first composition was publicly performed in the same year. Wellesz's work as a composer, scholar, and lecturer in Vienna laid the foundation for his significant contributions to the field of music.

Egon Brunswik Edler von Korompa, born in Budapest, Hungary, was a prominent psychologist known for his theory of probabilistic functionalism and his advocacy for representative design in psychological research. After completing his education in mathematics, science, classics, and history, he pursued psychology at the University of Vienna, where he was influenced by Moritz Schlick and the Vienna Circle of logical positivists. Brunswik's career saw him establishing the first psychological laboratory in Turkey and becoming a Privatdozent at the University of Vienna. His collaboration with Edward C. Tolman at the University of California marked a pivotal point in his career, leading to his appointment as a full professor at Berkeley. Brunswik's contributions to the field of psychology include the development of probabilistic functionalism, the examination of the history of psychology in structural terms, and the proposal of representative design as an alternative to traditional experimental methods. His work, which focused on perception, interpersonal perception, thinking, learning, and clinical psychology, was characterized by a coherent approach. Despite his significant contributions, Brunswik's life was tragically cut short by suicide in 1955. His legacy lives on through his influential theories and methodologies that continue to shape the field of psychology.

Egon Loy, born on May 14, 1931, is a former German professional footballer known for his prowess as a goalkeeper. Loy's early career saw him rise through the ranks at TSV 04 Schwabach, before making his mark at Eintracht Frankfurt from 1954 to 1967. Loy's debut in the Oberliga Süd led to a successful season, despite a knee injury that hindered his performance in subsequent years. However, he made a strong comeback, playing an integral role in Eintracht Frankfurt's South German championship win in 1959 and their impressive European Cup run in 1959-60, where they emerged as runners-up. Loy's consistent performance continued through the Oberliga Süd and the newly formed Bundesliga, culminating in 69 Bundesliga matches between 1963 and 1966. Throughout his career, Loy's contributions led to numerous accolades, including the German championship in 1958-59 and the UEFA Intertoto Cup in 1966-67. Egon Loy remains a revered figure in German football history, known for his exceptional goalkeeping skills and significant achievements on the field.

Egon Bittner (April 16, 1921 – May 7, 2011) was a notable American sociologist known for his significant contributions to the sociology of policing. Born into a Jewish family in Skřečoň, a village in Silesia, which was historically a much-disputed part of Czechoslovakia and is now in the Czech Republic, Bittner's life was deeply impacted by the events of World War II. He survived incarceration during the war and later emigrated to the United States, where he pursued an academic career. Bittner initially focused on phenomenology and ethnomethodology, subsequently earning a Ph.D. from the University of California at Los Angeles and embarking on a distinguished teaching career. Notably, he held the Harry Coplan Professorship in the Social Sciences at Brandeis University and made groundbreaking contributions to the study of police and society. His influential works include "The Functions of the Police in Modern Society" (1970), which argued that police are defined by their capacity to use force, and other notable articles and books that have left a lasting impact on the field of police scholarship. In recognition of his significant contributions, Bittner was honored with the Police Executive Research Forum's Leadership Award in 1998, and his legacy continues to be celebrated through the Bittner Award presented by the Commission on Accreditation for Law Enforcement Agencies (CALEA).