Greatest Irish Americans of the 20th Century, edited by Patricia Harty, is a terrific overview of the Irish - American experience. At one point the Irish made up 10 percent of all immigrants into the United States. In these 200 oversized pages, you find out some of the consequences of that influx. Included are labor and religious leaders, actors, writers, politicians, gangsters. Everyone is here: Michael Flatley and Grace Kelly, Margaret Bourke - White and Georgia O'Keeffe, John McEnroe and Mark McGwire. No other designation besides "fellow Irish" would corral both Dorothy Day and Andrew Greeley in the same subset.Michael Sims is fond of Irish coffee and greatly admires redheads.