Becky M. Nicolaides, My Blue Heaven: Life and Politics in the Working-Class Suburbs of Los Angeles, 1920-1965, Photographs by Robbert Flick. The University of Chicago Press: Chicago, 2002, 1960, 1950, 1939,
"In late 1930s Santa Monica adopted 'a handbill ordinance' that prohibited out-of-town businesses from advertising in Santa Monica."
Nicolaides on p. 192 "Scattered working-class pockets around Santa Monica and southwestern Los Angeles likewise got red-lined although not always for racial reasons."--1939 HOLC appraisers."
Nicolaides on p. 201, Table 5, gives the Santa Monica Median Family Income in 1939 as $2,667, in 1950, $3677, and 1960, $6845. I'm not sure if these are adjusted dollar amounts."