Delaware & Hudson on the Ulster and Delaware or on the Delaware and Ulster!??? I am confused.

The locomotive shown on the front of this post card is an Alco RS-36 that was owned by the Delaware & Hudson Railway. In this picture, it has been restored to run on the Delaware and Ulster Railroad in Arkville, New York.

The motto of the Delaware and Ulster is “Catskill Scenic Trail”. You can see it on the back of the post card that I have scanned below. Wikipedia tells us that by the end of the Civil War, railroads were pre-empting waterways as the preferred method of transportation. Thomas Cornell, founder of the Cornell Steamboat Company and a resident of Rondout, New York, was among those who noticed. Although Cornell made plenty of money from shipping, he planned a railroad that would bring supplies from towns in central or western New York to his port in Rondout. So, Cornell chartered the Rondout and Oswego on April 3, 1866, with himself as the first president. After a couple of bankruptcies, reorganizations, and renaming of the railroad, the Ulster & Delaware Railroad (U&D) emerged in 1875. The U&D's peak year came in 1913, with 676,000 passengers carried up into the Catskills plus substantial amounts of freight. By the time of the Great Depression of 1929 and thereafter, most of the passenger traffic had been lost to private cars on improved highways, buses and shared limousines; trucks had taken most of the non-commodity freight business; and the railroad was in serious financial trouble and a shadow of its former self. The New York Central acquired the failing U&D on February 1, 1932 Today, the Delaware and Ulster Railroad (DURR) is a heritage railroad based in Arkville, New York. This is their website: https://durr.org/about/crc-background/ The last commercial train ran through the Catskills in 1976. However, in the years following the rail line’s closure, several individuals with the support of the A. Lindsay & Olive B. O’Connor Foundation Inc. endeavored to give the Catskill Mountain Branch of the once great railroad a new life as a tourist attraction. The Catskill Rail Committee was formed to purchase and take over the right-of-way and to connect the leaders and stakeholders of towns that the tracks ran through for 45 miles in both Delaware and Schoharie Counties. A workable vision to preserve the railroad was forged and resulted in the launching of the “Delaware & Ulster Rail Ride” which in 1983 started offering scenic rides aboard vintage train cars from Arkville to Fleischmanns and Highmount and back. The D&U quickly became the biggest single tourism draw that Delaware County had to offer. This is the website of the group that promotes hiking along the former rail line: https://www.catskillscenictrail.org/about Today the “Catskill Scenic Trail” is also used by a related group that promotes hiking on 26 miles of a former railroad, now used for hiking, biking, cross-country skiing, and horseback riding. Get out into the fresh air and explore the trail. The path was initially forged for the Ulster & Delaware Railroad, which operated until 1932.

The post card was published by the Jack Harmon Agency out of Stamford, New York. When I go online to find out about the company, I do not see that it still exists today.