Under the guidance of economist
Joseph French Johnson, Vanderlip took a position at a financial investigative service for stock investors in
Chicago in 1886. Three years later, in 1889, he became a reporter for the
Chicago Tribune, and was promoted to financial editor in 1892. While working for the newspaper, Vanderlip took an extension course in political economy at the newly founded
University of Chicago. This brought him to the attention of
Lyman J. Gage, who became
Secretary of the Treasury under President
William McKinley in 1897. Gage hired Vanderlip as his private secretary, six weeks before promoting him to
Assistant Secretary of the Treasury. As directed by the
War Revenue Act of 1898, Vanderlip was put in charge of sending out the $200 million bond issue to fund the
Spanish–American War and procuring the subscriptions, with the special direction to offer the bonds to the smallest subscribers first, so that the public would feel invested in the fight. Vanderlip and his team of 600 to 700 clerks succeeded in selling out the bond issue in just over 30 days, closing out the bond drive on July 14, 1898. Vanderlip's success brought him to the attention of
James J. Stillman, president of the
National City Bank of New York, then the country's largest bank. Vanderlip became vice president in 1902, and was president from 1909 until 1919. When the stock market and the financial system collapsed in the
Panic of 1907, Vanderlip worked closely with other stable bankers, led by
J. P. Morgan, to stop the depositors' run on banks that was leading to economic disaster. As part of an international economic relief response for the Panic of 1907, Vanderlip allied with top Japanese business leaders, hoping they could work together to stabilize the U.S. economy by increasing business and financial relations between their nations. He hoped this would also improve political relations between the U.S. and Japan. Based on these goals, in 1908, Vanderlip led a business U.S. delegation to Japan, where they met with Japanese business leaders, including
Baron Shibusawa Eiichi, Baron Shibusawa's son Shibusawa Masao,
Baron Takuma Dan, Taka Kawada, and
Baron Takamine Mitsui. This 1908 visit was the first official, modern day U.S. business delegation to visit Japan. The 1908 photo to the right presents Vanderlip during that 1908 visit. The Panic of 1907 had a deep effect on the thinking of Vanderlip and others who were involved. In November 1910, at the invitation of Senator Nelson Aldrich, Vanderlip joined a small group of leading bankers on a train to
Jekyll Island, Georgia, which later became known as the
Jekyll Island group. The bankers formulated the outline to a plan that laid the groundwork for the drafting of the eventual
Federal Reserve Act. Several of Vanderlip's ideas were incorporated into the final Federal Reserve Act. After the Federal Reserve Act allowed national banks worth more than $1 million to be involved in the international market, Vanderlip and his vice president at National City Bank,
Roger Leslie Farnham, plotted the takeover of the
Bank of the Republic of Haiti through the
United States occupation of Haiti, with initial plans beginning in 1909. Vanderlip wrote to Chairman of National City Bank
James Stillman in 1910, "In the future, this stock will give us a foothold [in Haiti] and I think we will perhaps later undertake the reorganization of the Government’s currency system, which, I believe, I see my way clear to do with practically no monetary risk". During the
Teapot Dome Scandal hearings in 1924, Vanderlip testified about what he believed to be a scandal during the administration of President
Warren G. Harding. Because he spoke out vigorously in defense of the public's right to know about various issues, Vanderlip was forced to resign from the boards of directors of almost 40 companies. He subsequently led a quieter life at his homes in New York and California. ==Personal life and purchases==