Vocation : Science : Mathematics/ Statistics

Jules Antoine Lissajous (French pronunciation: [ʒyl ɑ̃twan lisaʒu]; 4 March 1822 in Versailles – 24 June 1880 in Plombières-les-Dijon) was a French physicist, after whom Lissajous figures are named. Among other innovations, Lissajous invented the Lissajous apparatus, a device that creates the figures that bear his name. In it, a beam of light is bounced off a mirror attached to a vibrating tuning fork, and then reflected off a second mirror attached to a perpendicularly oriented vibrating tuning fork (usually of a different pitch, creating a specific harmonic interval), onto a wall, resulting in a Lissajous figure. This led to the invention of other apparatus such as the harmonograph.

Arnaud Denjoy (French: [dɑ̃ˈʒwa]; 5 January 1884 – 21 January 1974) was a French mathematician.

William Emerson (14 May 1701 – 20 May 1782) was an English mathematician. He was born in Hurworth, near Darlington, where his father, Dudley Emerson, also a mathematician, taught a school.

Richard Montgomery Scammon (July 17, 1915 – April 27, 2001) was an American author, political scientist and elections scholar. He served as Director of the U.S. Bureau of the Census from 1961 to 1965. Afterwards, he worked for decades directing election analysis for NBC News.

Deane Montgomery (September 2, 1909 – March 15, 1992) was an American mathematician specializing in topology who was one of the contributors to the final resolution of Hilbert's fifth problem in the 1950s. He served as president of the American Mathematical Society from 1961 to 1962.
Born in the small town of Weaver, Minnesota, he received his B.S. from Hamline University in St. Paul, MN and his Master's and Ph.D. from the University of Iowa in 1933; his dissertation advisor was Edward Chittenden.In 1941 Montgomery was awarded a Guggenheim Fellowship. In 1988, he was awarded the American Mathematical Society Leroy P. Steele Prize for Lifetime Achievement.
He was a member of the United States National Academy of Sciences, the American Philosophical Society, and of the American Academy of Arts and Sciences.

Andrew Pollard Ogg (born April 9, 1934, Bowling Green, Ohio) is an American mathematician, a professor emeritus of mathematics at the University of California, Berkeley.

Jacques Antoine Charles Bresse (9 October 1822, in Vienne, Isère – 22 May 1883) was a French civil engineer who specialized in the design and use of hydraulic motors.
Bresse graduated from the École Polytechnique in 1843 and received his formal education in engineering at the École des Ponts et Chaussées. He returned to the École des Ponts et Chaussées in 1848 as an instructor for applied mechanics courses and in 1853 gained his professorship in applied mechanics, after which he taught at the school until his death in 1883.His name is one of the 72 names inscribed on the Eiffel Tower.

Edmond Nicolas Laguerre (9 April 1834, Bar-le-Duc – 14 August 1886, Bar-le-Duc) was a French mathematician and a member of the Académie des sciences (1885). His main works were in the areas of geometry and complex analysis. He also investigated orthogonal polynomials (see Laguerre polynomials). Laguerre's method is a root-finding algorithm tailored to polynomials. He laid the foundations of a geometry of oriented spheres (Laguerre geometry and Laguerre plane), including the Laguerre transformation or transformation by reciprocal directions.