Thomas H. Dahill, Jr. was born in Cambridge and raised in Arlington, Massachusetts. After serving as an aerial navigator in World War II, he graduated from Tufts College, now University, with a degree in Chemistry and then proceeded to the School of the Museum of Fine Arts. Upon graduation he received a painting fellowship for two years at the American Academy in Rome. From that time to the present his professional activities have been painting, teaching studio arts and art history at the Museum School, Tufts University, and Emerson College. His experience in Italy stimulated a lifelong love of travel. Many of his trips were shared with the then Dean of Emerson College, Richard Pierce, sometimes accompanied by students. Although his emphasis has been painting, he has produced many watercolor and pen drawings inspired by his travels. In addition he has illustrated numerous books authored by friends and colleagues. There is an ebook on his art, 1955-58: Alan Seaburg, Botega a Roma: Tom Dahill at the American Academy (2007).