Question: Which American politician and soldier served with Jacob Ford, great-grandfather of Tirey L. Ford? 
Context: Nathan F. Ford (born May 23, 1927), was an American politician in the state of Tennessee.  Ford served in the Tennessee House of Representatives as a Republican from the 11th District from 1983 to 1984.  A native of Del Rio, Tennessee, he was an optometrist and alumnus of the Southern College of Optometry. Tirey Lafayette Ford (December 29, 1857 – June 26, 1928) was a successful and noted San Francisco attorney, State Senator, and Attorney-General of California.  The family came to America in 1650 by French Huguenots, who located in Virginia.  His great-grandfather, Jacob Ford, was with General George Washington at Yorktown, Virginia when the surrender of Lord Cornwallis occurred.  His grandfather, Pleasant Thomas Ford, was with General William Henry Harrison in the Indian campaigns which made the Battle of Tippecanoe famous. William Windom (May 10, 1827January 29, 1891) was an American politician from Minnesota.  He served as U.S. Representative from 1859 to 1869, and as U.S. Senator from 1870 to January 1871, from March 1871 to March 1881, and from November 1881 to 1883.  He also served as Secretary of the Treasury from March to November 1881, and from 1889 to 1891.  He was a Republican.  He was the great-grandfather of actor William Windom, who was named for him. George Washington (February 22, 1732 [O.S. February 11, 1731]  – December 14 , 1799) was an American politician and soldier who served as the first President of the United States from 1789 to 1797 and was one of the Founding Fathers of the United States.  He served as Commander-in-Chief of the Continental Army during the American Revolutionary War, and later presided over the 1787 convention that drafted the United States Constitution.  He is popularly considered the driving force behind the nation's establishment and came to be known as the "father of the country," both during his lifetime and to this day. Gerald Rudolph Ford Jr. (born Leslie Lynch King Jr.; July 14, 1913 – December 26, 2006) was an American politician who served as the 38th President of the United States from August 1974 to January 1977, following the resignation of Richard Nixon.  Prior to this he served eight months as the 40th Vice President of the United States, following the resignation of Spiro Agnew.  He was the first person appointed to the vice presidency under the terms of the 25th Amendment, and consequently the only person to have served as both Vice President and President of the United States without being elected to executive office.  Before his appointment to the vice presidency, Ford served 25 years as U.S. Representative from Michigan's 5th congressional district, the final nine of them as the House Minority Leader. Josiah Quincy VI ( ; October 15, 1859 – September 8, 1919) was an American politician from Massachusetts who served as mayor of Boston from 1895 to 1899.  His grandfather, Josiah Quincy, Jr., and great-grandfather, Josiah Quincy III, also served as mayor of Boston.  Quincy was born in Quincy, Massachusetts on October 15, 1859 and pursued a career as a lawyer.  A Democrat he was a member of Massachusetts House of Representatives from 1887 to 1888 and from 1890 to 1891. Johnny L. Ford (born August 23, 1942, in Midway, Alabama) is an American politician and mayor of Tuskegee, Alabama, and a former Alabama State Representative.  He was raised as a child and attended elementary school in Tuskegee.  He is a graduate of Tuskegee Institute High School.  Ford received his B.A. in History and Sociology from Knoxville College, his Master's of Public Administration from Auburn University Montgomery, and has received four Honorary Doctorate Degrees.  He has three children: John, Christopher, and Tiffany. Harold Eugene Ford Jr. (born May 11, 1970) is an American politician and author who served five terms in the United States House of Representatives as a member of the Democratic Party from  's 9 congressional district , centered in Memphis, from 1997 to 2007.  He is the son of former Congressman Harold Ford Sr., who held the same seat for 22 years.  In 2006, Ford made an unsuccessful bid for the US Senate seat vacated by retiring Bill Frist.  He is a member of the Ford political family from Memphis.  Ford was the last chairman of the Democratic Leadership Council (DLC). Hugh James Glenn (1824 – February 17, 1883) was a prominent businessman and politician in California.  Glenn was born near Staunton, Virginia, and grew up in Monroe County, Missouri.  He was educated as a physician at McDowell's Medical College in St. Louis, Missouri.  Glenn served with Colonel Alexander William Doniphan's Missouri Volunteers in the Mexican-American War, returning to St. Louis afterwards to marry Nancy Harrison Abernathy, a relative of Tirey L. Ford, on March 15, 1849.  In 1850, Glenn joined the California Gold Rush.  He found no gold, but was successful in operating a livery stable at Sacramento, later selling it for a good profit.  He returned to California in 1853, bringing his family with him. Jacob Ford Kent (September 14, 1835 – December 22, 1918) was a United States general during the Spanish–American War.  Kent also served in the Union army during the American Civil War.
Answer: George Washington