Question: When was the father of Klay Alexander Thompson born?

Context paragraphs:
John Murphy (loyalist): John Alexander Thompson Murphy (26 August 1950 – 10 August 1998) was a loyalist from Belfast, Northern Ireland.  He was one of the three leading men in the "Shankill Butchers", an Ulster Volunteer Force (UVF) murder gang.

Mychal Thompson: Mychal George Thompson (born January 30, 1955) is a Bahamian retired basketball player.  He played the power forward and center positions for the University of Minnesota and the NBA's Portland Trail Blazers, San Antonio Spurs, and Los Angeles Lakers.  Thompson won two NBA championships with the Lakers during their Showtime era in the 1980s.  He is the father of basketball players Klay Thompson, and Mychel Thompson, and baseball player Trayce Thompson.

Klay Thompson: Klay Alexander Thompson (born February 8, 1990) is an American professional basketball player for the Golden State Warriors of the National Basketball Association (NBA).  The son of former NBA player Mychal Thompson, he played college basketball for three seasons at Washington State University, where he was a two-time first-team all-conference selection in the Pac-10.  Thompson was selected in the first round of the 2011 NBA draft by Golden State with the 11th overall pick.  In 2014, he and teammate Stephen Curry set a then NBA record with 484 combined three-pointers in a season, as the pair were given the nickname the "Splash Brothers".  Thompson is a three-time NBA All-Star and a two-time All-NBA Third Team honoree.  In 2015, he helped lead the Warriors to their first NBA Championship since 1975.  Thompson helped the Warriors return to the NBA Finals for a third straight year in 2017, winning his second NBA Championship.

A.T. Bigelow: Dr. Alexander Thompson Bigelow (born 1841; died 1923) was an American chess master.

Alex Kyle: Alexander Thompson Kyle (16 April 1907 – 7 April 1990) was a Scottish amateur golfer.  He won the 1939 Amateur Championship and was in the British Walker Cup team in 1938, 1947 and 1951.

Darrell Thompson: Darrell Alexander Thompson (born November 23, 1967) is a former American football running back who played in the National Football League.  After graduating from John Marshall High School in Rochester, he played college football for the Minnesota Golden Gophers, where he became the school's all-time leader in career rushing yards.  Thompson was selected 19th overall by the Green Bay Packers in the 1990 NFL Draft.  During his NFL career, he played in 60 games, gained 1,640 rushing, 330 yards receiving, and scored 8 touchdowns.  He currently resides in Minnesota with his wife and four children.  His daughter Dominique plays collegiate volleyball at University of Wisconsin - Madison.

Sam Thompson (rugby league): Sam Thompson born 9 October 1986 in England is a rugby league player for St. Helens in the European Super League.

George Thompson (footballer, born 1884): George Alexander Thompson (23 March 1884 – after 1925) was an English footballer and manager who managed Luton Town for eight months during 1925.  Turning professional in 1906, he turned out for Sheffield United, Derby County and Newcastle United before moving into management.

Kevin Thompson (karate): Kevin Thompson born 1962, is a former world champion of karate.  Thompson was referred to in his early years of fighting as Lil K.A. named after his teacher Karriem Abdallah.  At the age of 14, Thompson had an article in Black Belt Magazine.  Kevin was inducted into the 1988 Black Belt Magazine Hall of Fame as the Co-Competitor of the Year.

Alexander Thompson House: The Alexander Thompson House is one of several originally built by members of the Thompson family in Thompson Ridge, a hamlet in the Town of Crawford in Orange County, New York.  It is located, like the others, along NY 302 just south of the intersection with Thompson Ridge Road.

Supporting paragraphs: Klay Thompson Mychal Thompson
Answer: January 30, 1955