Toronto Blue Jays first baseman Vladimir Guerrero Jr. will make MLB history when he takes the field Friday night for Game 1 of the World Series (8 p.m. EST on Fox & Fox Deportes). He and his father, Vladimir Guerrero, Sr., will become only the fourth father-son duo to play in the Fall Classic. 

There have been several great families throughout baseball's long history: the Alomars (Sandy, Sandy Jr., and Roberto), the Griffeys (Ken and Ken Jr.), the Bonds (Bobby and Barry), along with many others. 

The group has had decorated — sometimes Hall of Fame-caliber — careers. However, few of them reached baseball's biggest stage. 

Felipe Alou and Moises Alou

Felipe Alou played 17 seasons in the major leagues with six different franchises. His teams made the postseason only twice. The San Francisco Giants made it to the World Series in 1962, with Alou going 7-for-26 with a walk. The Giants lost the series to the New York Yankees in seven games. 

Like his father, Moises Alou spent 17 years in the big leagues. He appeared in the postseason with three different clubs, but it was with the 1997 Florida Marlins that he reached the World Series. Alou went 9-for-28 with three home runs, nine RBI and three walks. The Marlins won the series against the Cleveland Indians in seven games. 

The Alou family was already part of baseball royalty. Felipe's brothers, Jesus and Matty, had long careers as well, and both earned World Series rings: Matty in 1972 with the Oakland Athletics, and Jesus in 1973 and 1974 with the A's. 

Felipe's cousin, Jose Sosa, and nephew, Mel Rojas, also reached the sport's top level. 

Ray Boone, Bob Boone, Bret Boone, and Aaron Boone

It's tough to top three generations of family success in the sport at the highest level. Each member of the Boone family has played in the World Series. 

Ray Boone started it all, playing for six franchises during a 13-year career spanning from 1948 to 1960. The Indians won the World Series in Boone's first season, as the rookie infielder struck out in a lone plate appearance. 

Bob Boone followed in his father's footsteps, playing for three teams during a 19-year career behind the plate. He'd win the 1980 World Series with the Philadelphia Phillies, going 7-for-17 with four walks. 

Bob's two sons, Bret and Aaron, each reached the World Series, too. Bret was 7-for-13 with the 1999 Atlanta Braves when the Yankees swept them, while Aaron was 3-for-21 with the Yankees in 2003 when they lost to the Marlins.  

Clay Bellinger and Cody Bellinger

Clay Bellinger's career was brief, spanning parts of four seasons, but he was fortunate. The Yankees reached the postseason in three of those four years, winning two American League pennants and World Series titles. Bellinger was 0-for-2 with a pair of strikeouts. 

Cody Bellinger has already topped his father's career by a substantial margin. He's spent nine years in the league and will be among the biggest draws this offseason on the free agent market. Cody has reached the World Series three times (winning once with the 2020 Los Angeles Dodgers). He's 8-for-66 with a pair of home runs in those games. 

Vladimir Guerrero and Vladimir Guerrero Jr. 

Vladimir Guerrero was one of baseball's toughest hitters over his 16-year career. His teams would reach the postseason several times, but his only trip to the World Series came in the second-to-last season of his career. Guerrero was just 1-for-14 with a walk in 2010, when the Texas Rangers lost to the Giants in five games. 

Vladimir Guerrero Jr. has taken a different route to help the Blue Jays clinch an American League crown. He's been one of the hottest hitters this postseason. Guerrero Jr. is 19-for-43 in the playoffs so far, with six homers and six walks. Through 51 plate appearances, he's posted a 1.440 OPS. 

The highest OPS in a single postseason (minimum 60 PA), while winning the World Series, was the 1.308 achieved by Alex Rodriguez in 2009 with the Yankees.