Ralph B. Larsen was a machinist at Los Alamos during the Manhattan Project. His wife, Ruth Anderson, also worked at Los Alamos.
Ralph B. Larsen
MachinistLos Alamos, NM
Manhattan Project VeteranProject Worker/StaffSpouse to Manhattan Project Worker
![Ralph B. Larsen's Los Alamos ID badge photo](https://ahf.nuclearmuseum.org/wp-content/uploads/2017/08/larsen-ralph_b.gif)