Charles Bradfield Morrey Jr. (July 23, 1907 – April 29, 1984)[4] was an American mathematician who made fundamental contributions to the calculus of variations and the theory of partial differential equations.

[5] In 1933, during his stay at the Department of Mathematics of the University of California, Berkeley as an instructor, he met Frances Eleonor Moss, who had just started studying for her M.A.

[9] With summers off the family enjoyed traveling: they crossed the United States by car at least 20 times, visiting many natural wonders, and looked forward to the AMS meetings, held each year in August.

in 1928,[10] and then studied at Harvard University under the supervision of George Birkhoff, obtaining a Ph.D. in 1931 with a thesis entitled Invariant functions of Conservative Surface Transformations.

Kelley, Lehmer & Robinson (1989, p. 107) describe him as really very gifted for friendship, having a charming sense of humor[17] and being continuously attentive for people, mathematics and musics.

According to Kelley, Lehmer & Robinson (1989, p. 106) and to Maull (1995a, p. 10), these books have had a wide influence on both university and high school teaching of mathematics.