Herbert S. Hadley examiners' board, a fish and game commission, a game protection board, and a Missouri waterways commission. Many of Hadley's recommendations for change in other government sectors, such as revenue and public service, were not supported by the Missouri General Assembly. In 1912, Hadley served as floor leader for Theodore Roosevelt's wing of the Republican Party at the 1912 Republican National Convention. After the death of Vice President James S. Sherman in October 1912, President William Howard Taft strongly considered naming Hadley as Sherman's replacement on the 1912 Republican ticket, but Taft ultimately did not select a replacement before the election
William Loeb Jr. report on his meeting. Roosevelt accepted Root's decision and told Loeb that his choice then was William Howard Taft, saying that he had the experience to run the government. From March 1909 to 1913 He was appointed by President Taft Collector of the Port of New York. He later went on to become Vice President of the American Smelting and Refining Company and retired to a quiet life in Oyster Bay where he lived with his wife and son, William Loeb III. William Loeb Jr. died on 19 September 1937 in Glen Cove, Nassau County, New York, at age 70.