10, 1869. Transfer to Central Overland Trail Butterfield’s Overland Mail Company was ordered to transfer the company to the Union-held Central Overland Trail, because of the impending start of the Civil War. The last Overland Mail Company mail bag left St. Louis, Missouri, March 18, 1861. This last mail arrived in San Francisco, California April 13, 1861. William Buckley, of Watertown, New York, was the Superintendent of the Fourth Division for Butterfield's Overland Mail Company on the Southern Overland Trail. When Butterfield's Overland Mail Company contract was transferred to the Central Overland Trail, although some of the employees returned to Upstate New York, some retained their positions with the company. William Buckley was one of the original employees to continue with the company on the Central Overland Trail and took the position of Superintendent. Although William B. Dinsmore was now the company president, John Butterfield was still a stockholder and it can be seen in this article that the Overland Mail Company was still called "Butterfield's" by the employees. Only enough equipment and employees were transferred to stock the trail from Carson City, Nevada, to Salt Lake City, Utah. A June 1861 newspaper accounted the details: "Great Salt Lake City, June 5, 1861. ... William Buckley, formerly the Superintendent of the Butterfield route from San Francisco to El Paso, F. Cluggage, an Agent in that route and Bolivar Roberts, the Superintendent of the western division on this route, came in a week ago yesterday from Carson, which I noticed in my last letter, and on Friday Edward Fisher, and four other employees in some department, came in from St. Joseph. ...They have, whatever else besides, at least made all the necessary arrangements for a vigorous start to the daily mail, and everything will be ready by the first week in July [July 1 was when the line was ordered to start by the new contract] to fulfill the of obligations of the million contract. ... Last evening, profiting by a conversation with Mr. Buckley, I obtained from him a copy of his measurement of the road from Carson to this city [Salt Lake City]. ... Placerville [California] being the terminus, another 100 miles should be added between that and Carson, as the entire distance of the Butterfield new route. These are the stations now in use and to be continued, from the facilities they afford of proximity to wood, water