Career, in brief
John Jefferson competed for Great Britain in men's artistic gymnastics at the 1912 Games. He placed 3rd in the team (european system),.
John Jefferson competed for Great Britain in men's artistic gymnastics, 1912. Career medals: 1 bronze.
John Jefferson competed for Great Britain in men's artistic gymnastics at the 1912 Games. He placed 3rd in the team (european system),.
Career arc, year by year.