(en) « Where the Mississippi Pauses... », sur cityoflittlefalls.com (consulté le ) : « He spent his boyhood on the Mississippi River, enjoying his summers in a house built by his father on the west bank of the river south of town. His father was a lawyer, politician, and real estate broker. His mother was well-educated and taught high school chemistry. »
le-bourget.fr
« Jumelage », sur Mairie Le Bourget (consulté le )
