The city of Ontario was founded by the Chaffey Brothers back in 1881 on a patch of land, that back then was mostly barren scrub and weeds and population by Indians and Spanish Missionaries.
In regards to the State St. house in Ontario..
Back in the mid-late 90s my cousin's brother-in-law, wife and family lived in that small house right on the southwest corner of State St. and Campus. He had been a little depressed for about a month. His wife was about 7 months pregnant and he had no job news and was stressing along with a lot of other problems.
In the 60's and 70's I lived in Ontario on Fresno St., a cookie cutter housing tract built on an old grape vinyard on the south side othe I10 freeway.