List of Famous people born on February 9th

Mikhail Aleksandrovich Bonch-Bruevich, sometimes spelled Bonch-Bruyevich, was a Russian engineer, scientist, and professor. Generally considered the leading authority on radio in Russia in the first decades of the 20th century, he greatly influenced the pre-radar development of radio-location in that nation.

Edward Lawrence Leahy was a United States Senator from Rhode Island and a United States District Judge of the United States District Court for the District of Rhode Island.

Edwin Maxwell was an Irish character actor on in Hollywood movies of the 1930s and 1940s, frequently cast as shady businessmen and shysters, though often ones with a pompous or dignified bearing. Prior to that, he was an actor on the Broadway stage and a director of plays.

Henri-Joseph Rigel was a German-born composer of the Classical era who spent most of his working life in France. He was born in Wertheim am Main where his father was musical intendant to the local prince. After an education in Germany, where his teachers included Niccolò Jommelli, Rigel moved to Paris in 1767. He quickly acquired a reputation in musical circles and published harpsichord pieces, string quartets, symphonies and concertos. He began composing for the Concert Spirituel, most notably four hiérodrames : La sortie d'Egypte (1774), La destruction de Jericho (1778), Jephté (1783) and Les Macchabées. These show the influence of Christoph Willibald Gluck, and Gluck himself praised La sortie d'Égypte. Between 1778 and 1799 Rigel also wrote 14 operas, including the opéra comique Le savetier et le financier (1778).

Magdalena Neff (1881–1966), was a German pharmacist. She is known as the first formally educated female pharmacist, which she became in 1906.

Hermann Föttinger was a German engineer and inventor. In the course of his life he submitted over 100 patent applications, but he is most notable for inventing fluid coupling.

Friedrich Benjamin Osiander was an obstetrician at Göttingen, who invented uterine traction forceps. He was the father of obstetrician Johann Friedrich Osiander.