those are great images of ferguson alley E_R. the 1st one is looking east towards alameda from the intersection of Calle de los negros. i found this image of jerry's joynt looking down calle de los negros
Source: USC Digital Archive
http://digitallibrary.usc.edu/assets...16-4-ISLA?v=hr
an 1882 view looking north on calle de los negros towards ferguson alley
Source: USC Digital Archive
http://digitallibrary.usc.edu/assets.../CHS-7127?v=hr
another view taken sometime in the 30's looking north easterly on calle de los negros towards ferguson alley. this building is really beautiful! according to the sign on the building, just to the left of the gentleman posing, this is the Chinatown location of the YMCA
Source: USC Digital Archive
http://digitallibrary.usc.edu/assets.../CHS-6686?v=hr
here's a 1940 image of the same building, apparently now named old los angeles which claims to offer the shortest route to union station....i'm kinda guessin' that the Big "Y" at the far right indicates that this building is still the YMCA
Source: LAPL
http://jpg2.lapl.org/pics19/00019099.jpg