Watson is of course a common surname, so I can’t say for sure whom this street honors, but my educated guess is real estate agent Roy Emerson Watson (1880-1969). Watson Avenue was named in 1949 on the Jacmar Orchards tract, owned by Jack Tilley and Mark Boyar, who not only combined their first names to make “Jacmar” but also named Tilley (since absorbed into Strub) and Boyar avenues on the tract. Since Roy E. Watson had been sales agent for the duo’s 1948 Jacmar Groves tract in Montebello, he was presumably the Watson they knew best. (I found no other viable candidates.) Watson was born in Concordia, KS, the oldest of five kids. He spent some years in Springfield, MO and then in the town of Globe, AZ, where he practiced law. He, his wife Grace, and their grown daughters Marjorie and Dorothy moved to SoCal in the 1920s and Watson got into real estate. They eventually settled in Montebello.
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