Benjamin Harrison (1833 – 1901), the 23rd President of the United States, was the grandson of former President, William Henry Harrison. As a lawyer in Indiana, he represented the railroad interests during the Great Railroad Strike of 1877. As president, he signed the Sherman Antitrust Act, which sought to curb the growing power of corporate monopolies; however, his administration was not particularly vigorous in enforcing it. He supported legislation to protect African Americans' civil rights, like the Federal Elections Bill, but most bills were defeated in the Senate. He helped create the first Forest Reserves (a precursor to National Parks) which totaled 22 million acres in his term. During Harrison's administration, U.S. troops from the Seventh Cavalry committed the Wounded Knee massacre, which killed at least 146 Lakota, including many women and children, and dumped the dead Lakota in a mass grave. Under Harrison's presidency, the following states were admitted to the Union: North Dakota, South Dakota, Montana, Washington, Idaho, and Wyoming--all of which were located on former native American tribal lands.