Henry William Jansson was born on January 26, 1903 in Göteborg and made his IFK Göteborg debut in the 1926/27 season, which was also the debut season of team mate Herbert Samuelsson. At 23 years, 6 months and 4 days, on August 1, 1926, he took part his first competetive game against Landskrona BoIS in an Allsvenskan game that ended 4–2. He spent one season with the IFK Göteborgs first team, and during his career he played in 5 first team games and scored 1 goals. Out of these 5 first team games, 4 were Allsvenskan games.
Henry Jansson is with his 4 Allsvenskan games number
402 on the list of those who have competed in most Allsvenskan games for IFK Göteborg. Jansson passed away in 1977, 74 years old.