Question: When was the American former professional boxer born under whom Derrick Lewis continued with boxing while working as a tow-truck driver?

Context articles: Derrick Lewis (fighter)
Derrick Jefferson
Wayne Elcock
Hedgemon Lewis
Ted &quot;Kid&quot; Lewis
Pernell Whitaker
George Foreman
Floyd Mayweather Sr.
Derrick Lewis
Robert Garcia (American boxer)

Born and raised as one of seven siblings, the second oldest, by a single mother in New Orleans, Louisiana, Lewis was troubled growing up and was often involved in street fighting.
 In 1999, Lewis and his family relocated to Houston, Texas due to his mother being in an abusive relationship.
 At the age of 17, Lewis began training in boxing and was preparing for his first amateur fight when the gym unexpectedly shut down.
 Two weeks after graduating from high school, Lewis was charged with aggravated assault, and was placed on probation.
 Two years later, while attending Kilgore College on a full scholarship for football, Lewis violated his probation and was sentenced to five years in prison, but ended up serving three and a half.
 A week after being released, Lewis was introduced to mixed martial arts by a friend and, while working as a tow-truck driver, continued with boxing under the tutelage of George Foreman.
 However, after dominating in his first professional mixed martial arts fight, Lewis decided to focus on mixed martial arts.
Derrick Lavon Jefferson (born March 10, 1968) is an American former professional boxer.
Wayne Elcock (born 12 February 1974) is a British former professional boxer.
 Who was managed by Frank Maloney at the start of his career and promoted by Panix promotions before moving after 2 winning fights to Frank Warren, then later to Mick Hennessy.
 Elcock was trained in Leicester to begin with by Jez brogan, before moving to London to be trained by both Frank Maloney and Alan Smith, along with several visits to america to build on his skills, where Wayne worked with Goody Petronelli the trainer of former world champions Marvelous Marvin Hagler and Steve Collins at his famous Brockton gym.
 Wayne came back to his home town to team up with Birmingham's most successful boxing trainers brothers Paddy & Tommy Lynch.
 Knocking out fellow contender Darren Rhodes in 1 minute 30 seconds in Elcocks homecoming and first ever fight with the Lynch brothers in Birmingham at a sold out Aston Events Centre, this setting up his first attempt at the prestigious British title Lonsdale Belt against Plymouth's Scott Dann (boxer) in the first British title fight to ever be scored by three judges, after defeat Wayne bounced back with two back to back knockout victories one of them a British title eliminator winning by TKO against Scotland's Lawrence Murphy, who was the only other boxer to have beaten Elcock, In Wayne's next contest he faced the English champion Steven Bendall who was to be yet another stopped, but this time over eight punishing rounds and setting up his next contest where he would become the first British boxer to beat long standing British champion Howard Eastman to win the coveted Lonsdale Belt in 2007, Elcock also won the Commonwealth title and the minor WBU World Middleweight title becoming the first Birmingham born fighter to ever hold a version of a World title.
 Elcock challenged for the IBF middleweight title against the unbeaten World champion Arthur Abraham on 8 December 2007, losing by a fifth round knockout.
 Wayne bounced back from his world title attempt defending the lonsdale belt with a TKO win against local Dudley rival Darren McDermott, before losing the next defence to fellow Birmingham fighter Matthew Macklin in the Battle of Brum Elcock retired at the age of 36 in 2009 to concentrate fully on his other business matters and today Wayne can be found mentoring in schools and behind the counter at Mad Dog's Boxing shop in Boldmere, Birmingham, as well as coaching in the evening at the multi award winning company Wayne Elcock's Box Clever and at his own amateur boxing club Wayne Elcock's Boxing Academy, located in Chelmsley Wood, not far from where he grew up.
Hedgemon Lewis (born February 25, 1946) is an American former professional boxer and trainer.
 Lewis began boxing at the age of 12, out of the Northern Recreation Center in Detroit.
 As a young, aspiring fighter he boxed as part of the same camp as renowned coach Emmanuel Steward.
 During a distinguished amateur career, Lewis picked up the National Golden Gloves Lightweight title in 1964 and the Welterweight title in 1966.
 He turned professional in May 1966.
Ted "Kid" Lewis (born Gershon Mendeloff; 28 October 1893 – 1970) was an English professional boxer who twice won the World Welterweight Championship (147 lb).
 Lewis is often grouped alongside the all-time greats, with ESPN ranking him 41st on their list of the 50 Greatest Boxers of All-Time and boxing historian Bert Sugar placing him 46th in his Top 100 Fighters catalogue.
 Statistical boxing website BoxRec ranks Lewis as the 17th best welterweight of all-time and the 7th best UK boxer ever.
 He is a member of the International Jewish Sports Hall of Fame, the Ring Magazine Hall of Fame, and the International Boxing Hall of Fame
Pernell Whitaker (born January 2, 1964) is an American former professional boxer who competed from 1984 to 2001, and has since worked as a boxing trainer.
 He is a four-weight world champion, having won titles at lightweight, light welterweight, welterweight, and light middleweight; the undisputed lightweight title; and the lineal lightweight and welterweight titles.
 In 1989, Whitaker was named Fighter of the Year by "The Ring" magazine and the Boxing Writers Association of America.
 From 1993 to 1997, "The Ring" ranked him as the best active boxer in the world, pound for pound.
George Edward Foreman (born January 10, 1949) is an American former professional boxer who competed from 1969 to 1977, and from 1987 to 1997.
 Nicknamed "Big George", he is a two-time world heavyweight champion and an Olympic gold medalist.
 Outside the sport he is an ordained minister, author, and entrepreneur.
Floyd Mayweather Sr. (born October 19, 1952) is an American former professional boxer who competed from 1974 to 1990, and has since worked as a boxing trainer.
 Fighting at welterweight during the 1970s and 1980s, Mayweather Sr. was known for his defensive abilities and overall knowledge of boxing strategy.
 He is the father and former trainer of five-division boxing champion Floyd Mayweather Jr., and is credited for teaching his son the defensive skills that made him a champion.
Derrick Lewis (born October 30, 1975 in New Orleans, Louisiana) is a former American football wide receiver.
 He played for the Austin Wranglers but left because the Austin Wranglers made the move to the af2
Roberto Garcia Cortez (born January 29, 1975), best known as Robert Garcia, is an American former professional boxer who competed from 1992 to 2001, and held the IBF junior lightweight title from 1998 to 1999.
 He has since worked as a boxing trainer, and was voted Trainer of the Year by "The Ring" magazine in 2011, and by the Boxing Writers Association of America in 2012.
 Garcia is the older brother of professional boxer Mikey Garcia, who himself is a former junior lightweight world champion.