SEAMUS O'FLYNN IS IN LOVE WITH NEW YORK CITY. His diaries of an immigrant son begin during the Great Depression. The O'Flynns, Irish Catholic immigrants, keep body and soul together at St. Nicholas Church and School in the Bronx. A few steps away is a redbrick apartment building, home of the O'Flynns and other immigrant families. Seamus' New York adventures begin every time he drops a nickel in the subway turnstile and heads to the Empire State Building, Yankee Stadium, Macy's, the Metropolitan Museum, Times Square, Ebbets Field. It is the era of President Roosevelt, Mayor LaGuardia, Joe...