History of Union Square, San Francisco

Union Square and St. Francis Hotel after Earthquake, San Francisco, News Photo - Getty Images

Downtown / Union Square Plaza Images - OpenSFHistory - Western Neighborhoods Project

San Francisco/Union Square-Financial District – Travel guide at Wikivoyage

1921 - Union Square, San Francisco - Spofford Alley from Washington to Clay Bet. Stockton & Warsley [?] Place.

9 Facts You Might Not Know About Union Square - Gothamist

Union Square San Francisco CA Poster Print by Vintage San Francisco (24 x 36): Posters & Prints

When Union Square was a desolate sand dune

Macy's Union Square: Clothing, Shoes, Jewelry - Department Store in San Francisco, CA

Union Square - Two Days in San Francisco

Beresford Hotel, Affordable, Historic Hotel

City of Paris and Call Building Union Square, San Francisco May 28, 1900 Photograph by Monterey County Historical Society

City of Paris and Call Building Union Square, San Francisco May 28, 1900 by Monterey County Historical Society

Vintage Photos: Union Square's Chicest Stores of Christmases Past - 7x7 Bay Area

History of Union Square - Books & Stories