West Coast Relays included participation by the football wide receiver who played for which two teams?
Chicago Bears and Los Angeles Raiders
Willie Gault
Willie James Gault (born September 5, 1960) is a former American football wide receiver and Olympic athlete.
 He played in the National Football League for 11 seasons for the Chicago Bears and Los Angeles Raiders.
 Considered one of the fastest NFL players of all-time, Gault was a member of the Bears team that won Super Bowl XX, and was also a member of the U.S. Olympic team that boycotted the 1980 Olympics.
West Coast Relays
Started April 30, 1927, the West Coast Relays grew to one of the premier track and field events in the United States.
 Held in Fresno's Ratcliffe Stadium, it was the site of thirty-six world records and many national and collegiate records.
 It became the home of the debut of some of the Central Valley's best known athletes; Bob Mathias, Dutch Warmerdam, Rafer Johnson, Tommie Smith and Henry Ellard.
 Participants included future stars of other sports; Jackie Robinson, O.J. Simpson, Willie Gault, and Bill Russell.
J. D. Hill
J. D. Hill (born October 30, 1948, in Stockton, California) is a retired American football wide receiver who played seven seasons in the National Football League for the Buffalo Bills and Detroit Lions; he played college football at Arizona State University.
 His son, Lonzell Hill, also played wide receiver in the NFL.
 Another son, Shelby Hill, was a wide receiver for Syracuse University. Morgan Groth
Morgan Groth (born August 31, 1943 in Martinez, California) is an American former middle distance runner who competed in the 1964 Summer Olympics.
 Oregon state university set the world record in the 2 mile relay with a time of 7:18.9 at the West Coast Relays in Fresno CA. Ratcliffe Stadium
Ratcliffe Stadium is located on the campus of Fresno City College in Fresno, California.
 Opened in 1926 but renamed in 1941 after their first football coach, Emory Ratcliffe, the stadium hosted the NCAA football Raisin Bowl from 1946 through 1949 and was home to the Fresno State Bulldogs football team until they moved to the on-campus Bulldog Stadium in 1980.
 It was also the home of the West Coast Relays.
 Today local high school football games and various track and field events are still held there.
 The stadium has a capacity of 13,000, and it is located at 1101 E. University Avenue, along Blackstone Avenue. Frank Jackson (American football)
Frank Hardin Jackson (born April 14, 1939) is a former American football wide receiver.
 He played college football at Southern Methodist University (SMU) and professionally with the American Football League's Dallas Texans, the Kansas City Chiefs, and the Miami Dolphins.
 As a halfback, he scored four TDs (two rushing, two receiving) for the Texans in a 49–21 victory over the Denver Broncos in 1961.
 As a wide receiver, in 1964 he caught four touchdown passes from Len Dawson in a 49–6 Chiefs defeat of the San Diego Chargers.
 That tied the pro football record at the time.
 He was an American Football League All-Star in 1965.
 He played on the Texans' 1962 AFL Championship team, winning the longest pro football game ever played up to that time in the AFL Championship game against the two-time defending AFL Champion Houston Oilers. Jim Lash
James Verle Lash (born November 12, 1951) is a former American football wide receiver in the National Football League in the 1970s and played on three Super Bowl teams.
 He attended Garfield High School in Akron, Ohio, the same high school that fellow NFL wide receiver Steve Craig attended.
 His five-year pro-career was spent with the Minnesota Vikings in which he helped lead to Super Bowl VIII, Super Bowl IX and Super Bowl XI all coming up a bit short against the dynasty teams of the Miami Dolphins, the Pittsburgh Steelers and the Oakland Raiders. Johnnie Morant
Johnnie Morant, Jr. (born December 7, 1981) is a former gridiron football wide receiver.
 He was drafted by the Oakland Raiders in the fifth round of the 2004 NFL Draft.
 He played college football at Syracuse.
 He is currently the Head Strength and Conditioning Coach and Wide Receivers coach at East Carter High School.
 While at Kentucky Christian University, Coach Morant help mentor an All-American Wide Receiver who was invited to an All Star game and an All Mid-South Academic Wide Receiver. Kyle Prater
Kyle Prater (born June 21, 1992) is an American football wide receiver who is currently a free agent.
 Prater attended Proviso West High School in Hillside, Illinois where he was a member of the football and basketball teams.
 Prater was a five-star football recruit and ranked as the No. 1 wide receiver in the 2010 recruiting class by Rivals.com.
 Prater committed to play for the University of Southern California in September 2009.
 After two seasons at USC, he transferred to Northwestern University.
 After going undrafted in the 2015 NFL Draft, he was signed as an undrafted free agent by the New Orleans Saints. Flint Hanner
John Flint Hanner (May 21, 1898 – September 14, 1973) was an American track and field athlete and coach.
 He won the first NCAA javelin championship in 1921 and later worked as the track coach at Fresno State University for 35 years.
 He was also one of the founders and the long-time director of the West Coast Relays.