From looking at the birth certificates of my Granny and her siblings and the 1940 US Census, I have been able to pinpoint the various houses in which the Campuzano family lived (thank you Google Maps & Streetview, see below).
|Corner of Convent & W. Simpson today, Campuzano residence in 1926|
Many of the homes have murals, for more see photos and at TucsonMurals. The University of Arizona Library published a book on the neighborhood called Barrio Historico Tucson (1971), which looks at the neighborhood from an architectural & historic perspective. Figure 2.27 from the book shows a drawing of the front of the Campuzano house as representative of the architecture for Barrio Viejo:
I visited my great-grandfather in Tucson with my family in the mid-1980s. Over the years I've had a real comfort level when walking through old neighborhoods in various Latin American cities, such as in Mexico City, San Juan, Puerto Rico, Cartagena, Colombia and San Jose, Costa Rica. Perhaps this is something passed down.