Abbas Amanat
Abbas Amanat is William Graham Sumner Professor of History at Yale University.
William D. Turner
William Wallace Davenport Turner( June 1, 1836 – April 2, 1905) was a member of the Wisconsin State Assembly.
William Wallace Lincoln
William Wallace Lincoln (December 21, 1850 – February 20, 1862) was the third son of President Abraham Lincoln and Mary Todd Lincoln.
He was named after Mary's brother-in-law Dr. William Wallace.
Gregory D. Scholes
Gregory D. Scholes is William S. Tod Professor of Chemistry at Princeton University.
Mary Todd Lincoln
Mary Todd Lincoln (Mary Ann Todd; December 13, 1818 – July 16, 1882) was the wife of the 16th President of the United States, Abraham Lincoln, and as such the First Lady of the United States from 1861 to 1865.
She dropped the name Ann after her younger sister, Ann Todd (Clark), was born, and did not use the name Todd after marrying.
Mary was a member of a large, wealthy Kentucky family, and was well educated.
After finishing school during her teens, she moved to Springfield, Illinois, where she lived with her married sister Elizabeth Edwards.
Before she married Abraham Lincoln, Mary was courted by his long-time political opponent Stephen A. Douglas.
She and Lincoln had four sons together, only one of whom outlived her.
Their home of about 17 years still stands at Eighth and Jackson Streets in Springfield, Illinois.
She supported her husband throughout his presidency.
She witnessed his fatal shooting when they were together in the President's Box at Ford's Theatre on Tenth Street in Washington.
Mary was briefly involuntarily institutionalized for psychiatric disease ten years after her husband's assassination, but later retired to the home of her sister.
She also complained of many physical symptoms during her adult life.
William Wallace Brown
William Wallace Brown( April 22, 1836 – November 4, 1926) was a Republican member of the U.S. House of Representatives from Pennsylvania.
William Wallace McCredie
William Wallace "W. W." McCredie (April 27, 1862 – May 10, 1935) was a U.S. Representative from Washington.
William Wallace Johnson
William Wallace Johnson IV was a member of the Wisconsin State Assembly.
Bill Wallace (writer)
William N. Wallace( April 29, 1924 – August 11, 2012) was an American sportswriter for the" New York Times".
William Maxfield (cyclist)
William Wallace Maxfield( born 1916-1943) was a male cyclist who competed for England.

Question: What nationality is William Wallace Lincoln's mother?