- Mystic Seaport
- Bridgeport History Center
- Groton Public Library
- Fairfield Museum and History Center
- Greenwich Historical Society
- Bridgeport History Center, Bridgeport Public Library
- Connecticut State Library. Converted from Windows Audio File to MP3 October 7, 2019.
- Connecticut State Library. The program was published on YouTube in three parts.
- Slater Memorial Museum
- The Wadsworth Atheneum
- Water utilities
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- Hartford Public High School (Hartford, Conn.)
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- Isolationism Isolationism
- Landscape photography
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- Parks
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- Field (inhabited place)
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- Rhode Island (state)
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- Calgary (inhabited place)
- Massachusetts (state)
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- Skagway (inhabited place)
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- Westchester Creek
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- Providence River (R.I.)
- Seekonk River (R.I.)
- Vancouver (inhabited place)
- Warwick (R.I.)
- Westport (Mass. : Town)
- Westport Factory (Mass.)
- White River Junction (inhabited place)
- Barrington (inhabited place)
- Black's Crossing
- Blackstone River (Mass. and R.I.)
- Bolton (Mass. : Town)
- Bridgewater (Mass. : Town)
- Byram River
- City Island (New York, N.Y.)
- Concord (Mass.)
- Cumberland (R.I. : Town)
- East River (Long Island Sound)
- Fallkill Creek
- Greenwich (Conn.)
- Harrison (N.Y.)
- Hartford (inhabited place)
- Hunts Point
- Irvington (inhabited place)
- Lisbon (Conn.)
- Mansfield (Mass. : Town)
- Middletown (Conn.)
- Moshassuck River (R.I.)
- New Haven
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- North White Plains (inhabited place)
- Oak Point Float Bridges and Yard
- Poquonnock Bridge
- Port Chester (N.Y.)
- Poughkeepsie (N.Y.)
- Burleigh, L. R. (Lucien R.), 1853?-1923
- Crocker, John Denison
- Damato, Kathryn
- Davis, Mark
- Larson, John B., 1948-
- Shuster, Bill, 1961-
- Witkowski, Mary K.
- Wyman, Nancy, 1946-
- Acharya, Awanti
- Afro-American Educators Association
- Arnold, Henry C.
- Bailey, O. H. (Oakley Hoopes), 1843-1947
- Buck, Charles, 1817-1845
- Chase, Harry B.
- Cohen, Jeffrey P.
- Copeland, Jennie Freeman
- Cowles, Charlotte, 1820-1866
- Cowles, Mary
- Cowles, Samuel, 1814-1872
- Cui, Yunhe
- Dudley, William G.
- Foster, Hiram M.
- Fuller, Allyn
- Gunn, Charles B.
- Gunn, Charles.
- Heppenheimer, F.
- Kayler, R.S.
- Kellogg, E. C.
- Kirkwood, James Pugh, 1807-1877
- Knecht, H.
- Kraemer, Daniel
- Larsen, Donald A.
- Lehman, Eric
- Makowsky, Fred Otto
- Merriam, Nelson, 1813-
- Moore, Nelson Augustus, 1824-1902
- Obama, Barack
- Rau, J.
- Rockwell, Frederick C.
- Smith, B. F., Jr.
- Wall, James W.
- Wang, Wenjie
- Weidenmann, J.
- Withington, Sidney, 1884-
- Connecticut. Office of the Governor
- O.H. Bailey & Co.
- Boston and Providence Railroad
- Connecticut Commuter Rail Council
- Department of Transportation
- Fall River Rail Road Company
- Providence, Warren and Bristol Railroad Co.
- Connecticut. General Railroad Commissioners
- Connecticut. Office of the Lieutenant Governor
- Hartford and New Haven Rail Road Company
- New York Westchester and Boston Railroad
- Providence and Worcester Railroad
- Providence and Worcester Railroad Company
- University of Connecticut
- WTNH (Television station : New Haven, Conn.)
- AECOM Technical Services, Inc.
- Bailey &
- Boston and Providence R.R. Corp.
- Boston and Providence Railroad Corporation
- Co.
- Connecticut State Library. Office of the Public Records Administrator and State Archives
- Connecticut. Bureau of Public Transportation
- Connecticut. Department of Transportation
- Connecticut. General Assembly
- Connecticut. General Assembly. Committee on Railroads
- Connecticut. General Assembly. Joint Railroad Legislative Committee
- Connecticut. Office of Policy & Management
- Connecticut. Transportation Authority
- Dolph & Stewart
- E.B. & E.C. Kellogg (Firm)
- Holmes &
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- New England Railroad
- New York (State). Metropolitan Transportation Authority
- New York Westchester and Boston Railway
- New York and New England Railroad
- New York, Providence and Boston Railroad
- New York, Westchester and Boston Railroad
- O.H. Bailey.
- Penn Central Transportation Company
- Rathbone
- Southern New England Railway
- Tercentenary Commission of the State of Connecticut. Committee on Historical Publications
- Canadian Pacific Railway
- Canadian National Railways
- Rhode Island Railroad Valuation Maps
- Connecticut Images Collection
- Connecticut Railroad Valuation Maps
- Harry B. Chase, Jr. Papers
- Hartford City Parks Collection
- Mystic Seaport Museum
- Business & Industry
- British Columbia Railway
- State Publications
- Bridgeport General Photograph Collection
- Connecticut History
- Boston and Maine Railroad
- Governor Dannel P. Malloy Audio Files
- Carol Kimball Postcards
- Charles B. Gunn Collection
- Leroy Roberts Railroad Collection
- Governor Dannel P. Malloy YouTube Channel
- General Photograph Collection - Fairfield Museum
- “From the Historical Collections” by Mary K. Witkowski
- Southern New England Telephone Company Records
- Annual report, Connecticut Commuter Rail Council
- 2015 Photographs
- Filley Family Scrapbook, 1881-1948
- Arthur Robinson, papers, 1904-1929
- Hartford Engineering Department Records
- Photographs
- Town and City Maps (CHI Featured Topics)
- Afro-American Educators Association: Oral History Project
- Grassroots Historians Series
- Janet Thompson Postcards
- Guides to Connecticut History Collections
- Ferdinand Leppens items
- MAGIC Historical Map Collection
- John L. Merritt Papers
- Atlas of New Haven County
- Baltimore & Ohio Railroad
- Slater Memorial Museum
- Wadsworth Atheneum
- Connecticut state rail plan
- General Assembly Papers, 1803-1870 (RG 002:004)
- Briefing Memos, 2014-2018
- Releases and Statements, 2014-2018
- Email Archive, August 2011- May 2013
- Email Archive from Second PC, March 2011 to May 2012
- Issue Briefs on Transportation, 2012-2013
- 2018 Photographs
- Policy Information by Issue Area
- Website Stuff
- 2016 Photographs
- Books and Journals
- 1901 Hearings and Proceedings of the Connecticut General Assembly
- Annual report of the General Railroad Commissioners of the State of Connecticut, for, 1855-1874
- Annual report of the directors of the Providence and Worcester Railroad Co. to the stockholders, <1840-1900>
- Dudley Photograph Collection of Hartford During World War I (PG 034)
- Charlotte and Samuel Cowles Correspondence, 1833-1841, 1846
- Welles family papers, 1911-1934
- Places (CHI Agriculture Featured Topic)
- Documents and Letters (CHI Religion and Faith Featured Topic)
- Public Records (CHI Science and Technology Featured Topic)
- Books and Pamphlets (CHI Transportation Featured Topic)
- Documents and Letters (CHI Transportation Featured Topic)
- Media (CHI Transportation Featured Topic)
- Organizations (CHI Transportation Featured Topic)
- Places (CHI Transportation Featured Topic)