James Harlan (August 26, 1820 – October 5, 1899) was an attorney and politician, a member of the United States Senate (1855-1865), (1867-1873) and a U.S. Cabinet Secretary at the United States Department of Interior (1865-1866) under President Andrew Johnson.

Mary Eunice Harlan (September 25, 1846 – March 31, 1937) was the daughter of United States Senator James Harlan, the wife of Robert Todd Lincoln and the daughter-in-law of Abraham Lincoln.

Silas Harlan was a pioneer. He was born on March 17, 1753 in Berkeley County, West Virginia (when it was still part of Virginia), the son of George and Ann (Hurst) Harlan. Harlan County, Kentucky was named for him.

John Marshall Harlan (June 1, 1833 – October 14, 1911) was a Kentucky lawyer and politician who served as an associate justice on the Supreme Court.

John Marshall Harlan II (May 20, 1899 – December 29, 1971) was an American jurist who served as an Associate Justice of the Supreme Court from 1955 to 1971. He was the grandson of John Marshall Harlan.

Ida (Saxton) McKinley was the wife of William McKinley, the 25th President of the United States of America, William McKinley. Ida’s great-great-grandmother was Sarah Harlan (#209 in the Harlan Family by Adolphus Harlan.)

Gerald Rudolff Ford Jr., 38th president of the United States. President Ford was born Leslie Lynch King, Jr. He changed his name to Gerald Rudolff Ford, Jr. in honor of his step-father.