Sergeant Arthur C. Wilson is believed to have been appointed to the Cranston Police Department in January of 1921.  He was promoted to sergeant in late December of 1924, or early January of 1925, after the unexpected passing of Sergeant Maher on December 21, 1924.  It is believed he was still on the CPD in 1942. 

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Cranston Herald
February 5, 1942

Cranston Herald
April 9, 1942