Carroll, Michael P. (Winter 2020). "The Forgotten Story of the Bombings of the Italian Church of Saints Peter and Paul in San Francisco". Italian American Review. 10 (1): 36. doi:10.5406/italamerrevi.10.1.0019. S2CID216479654.
"City Takes Over B. M. T. System; Mayor Skippers Midnight Train". New York Herald Tribune. June 2, 1940. p. 1. ProQuest1243059209.
semanticscholar.org
api.semanticscholar.org
Carroll, Michael P. (Winter 2020). "The Forgotten Story of the Bombings of the Italian Church of Saints Peter and Paul in San Francisco". Italian American Review. 10 (1): 36. doi:10.5406/italamerrevi.10.1.0019. S2CID216479654.