In 1898, at age twenty-one, he graduated from the New York University School of Law, in New York City.
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When Iowa Republicans were divided between Theodore Roosevelt's Bull Moose Party candidacy and Republican Party nominee William Howard Taft, Connolly tied himself closely to Democratic presidential candidate Woodrow Wilson.
Maurice Ravel | Maurice Chevalier | Billy Connolly | Maurice Maeterlinck | Maurice Richard Arena | Maurice Delafosse | James Connolly | Maurice Sendak | Maurice Gibb | Order of Saints Maurice and Lazarus | Maurice Elvey | Maurice Duruflé | Maurice Béjart | Maurice | Maurice Tourneur | Maurice Merleau-Ponty | Saint-Maurice | Maurice Richard | Maurice LaMarche | Maurice Kanbar | Maurice Jarre | Maurice Fitzgerald | Maurice de Saxe | Maurice Bishop International Airport | Saint-Maurice, Val-de-Marne | Maurice Utrillo | Maurice Petty | Maurice Lucas | Maurice Iwu | Maurice Hewlett |
In 1914, Sweet was elected as a Republican to represent Iowa's 3rd congressional district in the Sixty-fourth Congress, replacing incumbent Democratic Congressman Maurice Connolly (who had run for the U.S. Senate).
Born in Corona, Queens, Queens County, New York, he was the son of Maurice Connolly and Mary Jane Connolly.