15 moments
Birth in Amoy
· Xiamen (historical Amoy), Fujian, China
Walter Houser Brattain was born in Amoy, now Xiamen, in Fujian. His father taught at the Ting-Wen Institute there. Coordinates represent central Xiamen; the precise birth building is not identified.
Childhood in Spokane
· Spokane, Washington, United States
After returning from China with his parents, Brattain spent the remembered part of his early childhood in Spokane. The source establishes residence beginning in 1903 but does not identify a street address.
Family ranch near Tonasket
· Tonasket, Washington, United States
The Brattain family settled on a cattle ranch near Tonasket, the setting of much of Walter Brattain’s youth. Coordinates represent Tonasket because the ranch's precise location is not supplied.
Whitman College degree
· Whitman College, Walla Walla, Washington, United States

Wikimedia Commons · Public domain · file Brattain completed his undergraduate education at Whitman College, earning a Bachelor of Science with majors in physics and mathematics.
Master's degree at the University of Oregon
· University of Oregon, Eugene, Oregon, United States

Wikimedia Commons · Creative Commons Attribution 3.0 Unported · file Brattain received his Master of Arts degree from the University of Oregon before proceeding to doctoral work.
National Bureau of Standards research
· National Bureau of Standards, Washington, D.C., United States
Brattain worked at the National Bureau of Standards in Washington, D.C., helping develop piezoelectric frequency standards before joining Bell Laboratories. Coordinates approximate the former National Bureau of Standards site in northwest Washington, D.C.
Doctoral degree at the University of Minnesota
· University of Minnesota, Minneapolis, Minnesota, United States

Wikimedia Commons · Creative Commons Public Domain Mark 1.0 · file Brattain completed a Doctor of Philosophy at the University of Minnesota; his thesis concerned electron-impact excitation and mercury-vapor scattering.
Michigan summer school lectures
· University of Michigan, Ann Arbor, Michigan, United States
Bell Laboratories allowed Brattain to attend Arnold Sommerfeld's course at the University of Michigan's 1931 summer school in theoretical physics.
West Street Bell Laboratories work
· Bell Telephone Laboratories, West Street, New York, New York, United States

Wikimedia Commons · Creative Commons Attribution-Share Alike 4.0 International · file While living in Greenwich Village, Brattain worked at Bell Telephone Laboratories' West Street laboratories, where his early work centered on surfaces, emission, and rectifiers. Coordinates represent the former Bell Laboratories West Street complex.
Wartime submarine-detection research
· Columbia University, New York, New York, United States
During World War II, Brattain worked with the National Defense Research Committee at Columbia University on magnetic detection of submarines. A Bell System Technical Journal biographical notice dates this Columbia assignment to 1942–1944; 1942 is used as the documented starting year.
Point-contact transistor work
· Bell Telephone Laboratories, Murray Hill, New Jersey, United States

Wikimedia Commons · Public domain · file At Bell Telephone Laboratories' Murray Hill site, Brattain and John Bardeen developed and demonstrated the point-contact germanium transistor during the November–December 1947 work period. Coordinates represent the historic Bell Laboratories Murray Hill/New Providence campus; the cited room was in Building 1.
Visiting lecturer at Harvard
· Harvard University, Cambridge, Massachusetts, United States
Brattain taught at Harvard University as a visiting lecturer while continuing his Bell Laboratories research career.
Return to Whitman as visiting lecturer
· Whitman College, Walla Walla, Washington, United States
Brattain began teaching physics at his alma mater, Whitman College, as a visiting lecturer, beginning a long late-career academic association with the college.
Whitman adjunct professorship
· Whitman College, Walla Walla, Washington, United States
After serving as a visiting lecturer and visiting professor, Brattain became an adjunct professor at Whitman College and continued teaching there through 1976. The Franklin Institute biography gives 1967 for his adjunct appointment, while Whitman's archival finding aid describes adjunct service from 1972 through 1976. This card uses 1972 for the better-supported institutional chronology.
Death in Seattle
· Seattle, Washington, United States
Brattain spent his final years in a Seattle nursing home and died there of Alzheimer's disease at age 85. The nursing home's precise location is not identified; coordinates represent central Seattle.