Question: Quentin, Pennsylvania was named after the youngest son of which President?
Context: Viscount Boyne, in the province of Leinster, is a title in the Peerage of Ireland.  It was created in 1717 for the Scottish military commander Gustavus Hamilton, 1st Baron Hamilton of Stackallan.  He had already been created Baron Hamilton of Stackallan, in the County of Meath in 1715, also in the Peerage of Ireland.  Hamilton was the youngest son of Sir Frederick Hamilton, youngest son of Claud Hamilton, 1st Lord Paisley (from whom the Dukes of Abercorn descend), third son of James Hamilton, 2nd Earl of Arran (from whom the Dukes of Hamilton descend).  His grandson, the second Viscount, represented Newport (Isle of Wight) in the House of Commons.  His first cousin, the fourth Viscount, sat as a member of the Irish House of Commons for Navan.  His great-grandson, the seventh Viscount, assumed in 1850 the additional surname of Russell (which was that of his father-in-law).  In 1866, he was created Baron Brancepeth, of Brancepeth in the County of Durham, in the Peerage of the United Kingdom.  Prior to the passing of the House of Lords Act 1999, the Viscounts Boyne sat in the House of Lords in right of this title.  s of 2010 the titles are held by the seventh Viscount's great-great-great-grandson, the eleventh Viscount, who succeeded his father in 1995. Quentin is a census-designated place (CDP) in Lebanon County, Pennsylvania, United States that was named after Quentin Roosevelt.  The population was 529 at the 2000 census. Abdullah I bin Sabah Al-Sabah (Abdullah I; 1740 – 3 May 1814) was the second ruler of Kuwait, ruling from 1763 to 3 May 1814.  He was the youngest son of Sabah bin Jaber, upon whose death he succeeded.  He was elected to the position by chiefs and notables despite his standing as the youngest son.  He is also the father of Jaber I Al-Sabah who succeeded him. Hamoud bin Abdulaziz al Saud was the only child of Futaimah Al-Yamania and the youngest son to live to adulthood of the founder of Saudi Arabia, King Abdulaziz ibn Saud.  Born in 1947, he died on 26 February 1994 at the age of 47 years.  He is the only one not represented in the Allegiance Council originally (later joined in similar circumstances by Prince Fawwaz upon his death) because he died without sons, only having one daughter.  Some sources say that he died in Saudi Arabia while talking with King Fahd.  He was also sometimes threatened by his brothers because he was the youngest of all his siblings.  He had a younger half-brother Jiluwi (II) who was born in 1952, but died the same year.  He was the youngest surviving son of Abdulaziz until his death in 1994, Thus, making Muqrin bin Abdulaziz the youngest-surviving son of King Abdulaziz. Romapada or Chitraratha was the youngest son King Vidarbha of Yadava and an adopted son of King Dharmaratha of Anga.  King Vidarbha had many sons but his friend King Dharmaratha had no son and so King Dharmaratha adopted his friend King Vidarbha's youngest son Romapada.  When King Vidarbha became old made Vidarbha Kingdom and made Kratha as the next Yadava ruler and made his second son Bhima as the ruler of Vidarbha and went to forest.  King Dharmarata named his adopted son as Chitraratha and also that people called him Romapada.  When King Dharmaratha grew old , He decided to make Romapada as the ruler of Anga. Baron Wrottesley, of Wrottesley in the County of Stafford, is a title in the Peerage of the United Kingdom.  It was created in 1838 for Sir John Wrottesley, 9th Baronet.  He was a Major-General in the Army and also represented Lichfield, Staffordshire and Staffordshire South in House of Commons.  He was succeeded by his son, the second Baron.  He was President of the Royal Astronomical Society as well as of the Royal Society.  His son, the third Baron, held junior positions in the first two Liberal administrations of William Ewart Gladstone.  He was succeeded by his eldest son, the fourth Baron.  On his death in 1962 the titles passed to his nephew, the fifth Baron who was the only son of the Hon. Walter Bennet Wrottesley, youngest son of the third Baron.In 1963 he sold the Staffordshire estate.  s of 2010 the titles are held by the fifth Baron's grandson, the sixth Baron, who succeeded in 1977.  He is the only son of the Hon. Richard Francis Gerard Wrottesley, second son of the fifth Baron. Quentin Roosevelt (November 19, 1897 – July 14, 1918) was the youngest son of President Theodore Roosevelt and First Lady Edith Roosevelt.  Family and friends agreed that Quentin had many of his father's positive qualities and few of the negative ones.  Inspired by his father and siblings, he joined the United States Army Air Service where he became a pursuit pilot during World War I.  Extremely popular with his fellow pilots and known for being daring, he was killed in aerial combat over France on Bastille Day (July 14), 1918. Augusto Ruspoli-Ottoboni, dei Principi Ruspoli (Rome, September 8, 1880 – Rome, 1912), was an Italian aristocrat, son of Mario Ruspoli and Costanza Boncompagni-Ludovisi-Ottoboni.  Mario was the youngest son of Augusto Ruspoli, who was the youngest son of Alessandro Ruspoli, 4th Prince of Cerveteri.  And Costanza was daughter of Marco Boncompagni Ludovisi Ottoboni, 10th Duke of Fiano. Quentin Roosevelt II (November 4, 1919 – December 21, 1948) was the fourth child and youngest son of Theodore "Ted" Roosevelt III and Eleanor Butler Alexander.  He was the namesake of his uncle Quentin Roosevelt, who was killed in action, in 1918 during World War I.  His elder brothers were World War II veterans Theodore Roosevelt IV and Cornelius Van Schaack Roosevelt III. Earl of Leitrim (pronounced "Leetrim") was a title in the Peerage of Ireland.  It was created in 1795 for Robert Clements, 1st Viscount Leitrim.  He had already been created Baron Leitrim, of Manor Hamilton in the County of Leitrim, in 1783, and Viscount Leitrim in 1793, also in the Peerage of Ireland.  In 1800 he was elected as one of the 28 original Irish Representative Peers.  Lord Leitrim was the son of the influential politician and financier Nathaniel Clements.  He was succeeded by his son, the second Earl.  He was created Baron Clements, of Kilmacrenan in the County of Donegal, in the Peerage of the United Kingdom in 1831, which gave him and his descendants an automatic seat in the House of Lords.  His eldest son Robert Clements, Viscount Clements, represented County Leitrim in Parliament.  However, he predeceased his father, unmarried.  Lord Leitrim was succeeded by his second son, the third Earl.  He also sat as Member of Parliament for County Leitrim.  A deeply unpopular landlord,Lord Leitirim was instructed to arm himself for protection and to be in the company of a strong bodyguard.  Lord Leitrim was murdered along with his clerk and driver by three men named Neil Shiels, Michael Mc Elwee and Michael Heragty while on his way to his residence in Milford in 1878. He was unmarried and was succeeded by his nephew, the fourth Earl.  He was the son of the Reverend the Hon. Francis Nathanial Clements, fifth and youngest son of the second Earl.  Lord Leitrim served in the Royal Navy.  He was succeeded by his eldest son, the fifth Earl.  He served as Lord-Lieutenant of the City of Londonderry.  He was twice married but childless.  As Lord Leitrim's two younger brothers had both died unmarried before him the titles became extinct on his death in 1952.
Answer: Theodore Roosevelt