Date Sketches, undated Bookmark Collection Context University of Connecticut -Archives and Special Collections at the Thomas J. Dodd Center New Haven Railroad Historical and Technical Association Collection, undated, 1860-1986Series V: Operations, undated, 1865-1975Subseries 3: Drafting, undated, 1951-1962Locomotive blueprints/diagrams, drafting work, date sketches, standard sketches, undated
Daylight Savings Time, 1916 Bookmark Collection Context University of Connecticut -Archives and Special Collections at the Thomas J. Dodd Center New Haven Railroad Historical and Technical Association Collection, undated, 1860-1986Series I: Secretary's Records, undated, 1860-1986Subseries 2: Subject Files, undated, 1872-1986Accident reports, business forms, service reports, regulations, undated, 1875-1986
Dead Lever Guide, undated Bookmark Collection Context University of Connecticut -Archives and Special Collections at the Thomas J. Dodd Center New Haven Railroad Historical and Technical Association Collection, undated, 1860-1986Series V: Operations, undated, 1865-1975Subseries 3: Drafting, undated, 1951-1962Locomotive blueprints/diagrams, drafting work, date sketches, standard sketches, undatedDrawings 10113-17557, undated
Deeds, maps, 1927-1929 Box 95 Bookmark Collection Context University of Connecticut -Archives and Special Collections at the Thomas J. Dodd Center New Haven Railroad Historical and Technical Association Collection, undated, 1860-1986Series I: Secretary's Records, undated, 1860-1986Subseries 6: Subsidiaries, undated, 1860-1968
Deeds, meeting minutes, construction/valuation reports, general records, ledgers, undated, 1860-1962 Box 93 Bookmark Collection Context University of Connecticut -Archives and Special Collections at the Thomas J. Dodd Center New Haven Railroad Historical and Technical Association Collection, undated, 1860-1986Series I: Secretary's Records, undated, 1860-1986Subseries 6: Subsidiaries, undated, 1860-1968
Deerfield-Turners Falls, undated Bookmark Collection Context University of Connecticut -Archives and Special Collections at the Thomas J. Dodd Center New Haven Railroad Historical and Technical Association Collection, undated, 1860-1986Series V: Operations, undated, 1865-1975Subseries 2: Bridges, Buildings and Grade Crossings, undated, 1898-1970Grade Crossing List Books, bound volumes, undated, 1925
DEFEM Corporation, 1954-1956 Bookmark Collection Context University of Connecticut -Archives and Special Collections at the Thomas J. Dodd Center New Haven Railroad Historical and Technical Association Collection, undated, 1860-1986Series I: Secretary's Records, undated, 1860-1986Subseries 2: Subject Files, undated, 1872-1986Financial reports, injury reports, floor plans, telephone directories, support documents, loans, correspondence, undated, 1895-1971
Delaware and Hudson Railroad Corporation Agreement, 1941 Bookmark Collection Context University of Connecticut -Archives and Special Collections at the Thomas J. Dodd Center New Haven Railroad Historical and Technical Association Collection, undated, 1860-1986Series V: Operations, undated, 1865-1975Subseries 1: Trains, Personnel, and Equipment, undated, 1878-1975Agreements, rules and schedules, 1905-1975
Derailments (2 ff), 1955-1959 Bookmark Collection Context University of Connecticut -Archives and Special Collections at the Thomas J. Dodd Center New Haven Railroad Historical and Technical Association Collection, undated, 1860-1986Series I: Secretary's Records, undated, 1860-1986Subseries 5: Insurance, 1947-1968Fires, derailments, vandalism, rolling stock values, 1955-1968
Derby Division, 1927 Bookmark Collection Context University of Connecticut -Archives and Special Collections at the Thomas J. Dodd Center New Haven Railroad Historical and Technical Association Collection, undated, 1860-1986Series I: Secretary's Records, undated, 1860-1986Subseries 6: Subsidiaries, undated, 1860-1968Deeds, maps, 1927-1929Connecticut Co., 1927-1929