Great recent posts everyone...Laboomer52..sopas_ej..gsgansen...and of course Gaylord.
Scott, the 'State Normal School' photo with the inscription on back is quite interesting.
Like you, I've never heard of a 'Normal Hill Center'. Isn't it great to find small clues like this when you least expect it.
Recently I have found a few photos and negatives on ebay.
below: A negative showing the Times Building among others.
below: Details of the above negative.
ebay
An early school located at Manchester Avenue and Avalon Blvd.
below: The flip side (I changed it to B/W for easier reading).
Manchester and Avalon
South Park School
I knew of this as the Green Meadows School.
Katie Nissen 3rd from the right back row.
(My mother)
below: An early photograph from a studio in Los Angeles.
It seems odd that the photographer's wagon can be seen behind the subject of the photograph.
below: A photograph of the beginning of a fire at Ocean Park.
below: Details
ebay