Spectacular bark. Like the Chinese Elm, gray with an orange brown inner bark. When young they have lots of lenticels.
They make spectacular bonsai.
Maybe the Ulmus parviflora, due to the bark and the leaves, but look at the leaves carefully, the serrations are much different.
Across from New Brighten School on Monterey Blvd.
Also just up the street are a few large ones, 825 Monterey Blvd
7th Ave young ones, around the 1000 block
King St in the grounds of Mission Bell School - One of the best