Also, is this a German flag (alongside the U.S. flag) at the top of a "Chop Suey" sign (lower-left section of the photo)?? If so, why a German flag??? https://assets.atlasobscura.com/article_images/lg/73195/imag...
Finally...
> "...A lot of the people in these photographs, we’ll never know their names... "
My hope with facial recognition technology - and in my opinion one of the very, very few acceptable/responsible uses of this tech. - is when descendants of these workers can pair their own family photos with these publicly-available photos to learn more about their own families, but also - if they so choose - to share the names of these anonymous workers with the world (to give them the credit that they so richly deserve for building our essential infrastructure).