Isador M. Sheffer

Isador Mitchell Sheffer (October 15, 1901–April 20, 1992) was an American mathematician best known for the Sheffer sequence of polynomials.^[1] Born in Massachusetts, he lived a large portion of his life in State College, Pennsylvania, where he was a Professor of Mathematics at Pennsylvania State University.

Isador M. Sheffer
Born	(1901-10-15)October 15, 1901 Massachusetts
Died	April 20, 1992(1992-04-20) (aged 90)
Nationality	American
Known for	Sheffer sequence
Scientific career
Fields	mathematics
Doctoral advisor	G. D. Birkhoff

He received his PhD from Harvard University in 1927, under the direction of George Birkhoff.^[2]