| | New Haven Railroad Historical Events |
| | Date | | Category | | Event |
| | 2/19/1931 | | Milestone | Testifying before Massachusetts legislative committee investigating domination of Massachusetts railroads by outside |
| | interests, PRR Pres. Atterbury calls for merger of New Haven and Boston & Maine. |
| | 2/23/1934 | | Milestone | On complaint of New England governors, ICC orders investigation into PRR and Pennroad Corporation's holdings in New |
| | Haven and Boston & Maine. |
| | 2/21/1935 | | Service Change | New Haven receives last of 50 new lightweight air conditioned coaches; financed by equipment trust through Federal |
| | Emergency Administrator of Public Works. |
| | 2/27/1937 | | Milestone | The first of ten class I-5 steam locomotives, #1400, delivered under its own steam via the Maybrook Line. |
| | 2/26/1941 | | 1st Bankruptcy | NEW YORK, NEW HAVEN & HARTFORD RAILROAD filed supplemental plan for reorganization, requiring acquisition |
| | of all properties of OLD COLONY RAILROAD, and inclusion of BOSTON & PROVIDENCE. Also provided acquisition of |
| | PROVIDENCE, WRREN & BRISTOL RAILROAD COMPANY and HARTFORD & CONNECTICUT WESTERN |
| | RAILROAD COMPANY. |
| | 2/1/1943 | | Abandonment | Line from Northampton, MA, to Cheapside, MA, abandoned. |
| | 2/8/1944 | | 1st Bankruptcy | NEW YORK, NEW HAVEN & HARTFORD RAILROAD filed fifth Supplemental Report and Order. |
| | 2/1/1948 | | Service Change | New Haven assumes operation of parlor cars, except through PRR lines over Hell Gate Bridge, from Pullman Company. |
| | 2/12/1949 | | Milestone | All switchers and local freights at Pittsfield, MA dieselized. |
| | 2/28/1950 | | Milestone | Parlor Car BLACKSTONE RIVER renamed NEW BEDFORD. |
| | 2/5/1954 | | Milestone | Washboard MU car # 4400 completed at Worcester, MA, the 1st of the 4400series Mus. |
| | 2/27/1956 | | Milestone | Passenger train service between Waterbury and Bridgeport restored after the 1955 floods. |
| | 2/17/1963 | | Wreck | A two Budd Car NHRR Fan Trip sideswiped at Windsor Locks, CT by seven car passenger train. One side of Budd Car #28 |
| | torn away. |
| | 2/18/1968 | | Abandonment | Line from Farmington to Unionville abandoned. |
| | Page 4 of 5 |