air raid sirens
wilshire and western 1952
Source:
USC Digital Archive
burbank public service building 1956
Source:
USC Digital Archive
van nuys city hall 1951
Source:
USC Digital Archive
federal building 1954
Source:
LAPL
july 4th 1951
Children plug their ears in anticipation of an air raid siren going off. "Ooooo! is the way the Hubik children -- Julius, 6; Suerita, 10, and Margie, 7 -- voiced their reaction today to the wailing of Los Angeles' air raid sirens and ringing of church bells at noon as glorious Fourth of July was celebrated in observance of 175th anniversary of signing of the Declaration of Independence. The blast also served as a country-wide test for the air raid sirens". "Braced for warning of biggest A-bomb test in desert. Young and old alike in Los Angeles are poised for 'It could happen here day' as historic A-bomb nears target; sirens will sound 10 minutes before drop".
Source:
LAPL