Bibliography
https://www.statueofliberty.org/ellis-island/overview-history/ - Ellis Island photo
https://historycambridge.org/online-exhibits/history-cambridge-postcard-collection-galleries/series-i-harvard-square/ - Cambridge photo (1900s)
https://www.businessinsider.com/pictures-photos-kyiv-ukraine-before-war-russia-history-rus-2022-12 - Kiev Ukraine photo
https://www.cambridgehistorian.co.uk/photographs/cambridge-1930s - Cambridge photo (1930s)