 | "Rhode Island in the Civil War" |
| Rhode Island Yearbook (Autumn 1966) H89-96 |
 | "Una pagina di storia delle ferrovie americane" |
| Mercurio. Sintesi del pensiero economico e sociale contemporaneo (Febbraio 1969) 12:2, 81-85 |
 | "The War and Economic Expansion" |
| Civil War Times Illustrated (January 1970) 35-43 |
 | "E. P. Alexander" |
| Civil War Times Illustrated (June 1970) 5-10 |
 | "The Robber Barons" |
| American History Illustrated (October 1971) 12-22 |
 | "The Knoxville Campaign" |
| Civil War Times Illustrated (October 1971) 4-11 |
 | "Patrick Calhoun" |
| Dictionary of American Biography Supplementary, Volume 3 |
 | "The Roaring Twenties" |
| American History Illustrated (January 1972) 10-19 |
 | "Life on the Lower East Side" |
| American History Illustrated (November 1972) 22-29 |
 | "The New Deal: End of a Beginning" |
| American History Illustrated (October 1973) 18-32 |
 | "The Way Things Might Be: Utopia in American Literature" |
| American History Illustrated (May 1974) 28-35 |
 | "The Rise of the Iron Horse" |
| American History Illustrated (June 1975) 4-10, 42-48 |
 | "The Early Years of the New York Times" |
| American History Illustrated (August 1975) 16-29 |
 | "Welcome to Megalopolis, South Kingstown" |
| Rhode Islander Magazine (November 16, 1975) 32-39 |
 | "Life Upon the Wicked Stage" |
| American History Illustrated (February 1977) 36-43 |
 | New Introduction to E. P. Alexander |
| Military Memoirs of a Confederate Morningside Edition (Dayton 1977) |
 | "Jay Gould: Man of Mystery" |
| American History Illustrated (October 1977) 10-18 |
 | "Life in Civil War America" |
| National Parks Publication (1977) |
 | "The Enigma of Emily" |
| American History Illustrated (December 1977) 4-11 |
 | "For Them, the Medium really is the Message" |
| Rhode Islander (January 29, 1978) 20-26 |
 | "Summering at the Pier" |
| American History Illustrated (May 1978), 32-43 |
 | "Yesterday: Frank Keaney and the Fast Break" |
| Sports Illustrated (November 27, 1978) |
 | "A Race in Upheaval: The Scotch-Irish in America" |
| American History Illustrated (January 1979) 30-36; (February 1979) 32-39; (April 1979) 8-12, 15-17 |
 | "Forgotten Curmudgeon: The Letters of Barnaby Beadle to his Brother Bob" |
| (South Kingstown, R.I., 1979) |
 | "Betty Hare's Landscapes of the Mind" |
| Rhode Islander (February 11, 1979) 4-6 |