A well-documented curiosity was that at the end of Basel's 1929–30 season, the team set off on a Scandinavian football tour, including a visit to Germany.
The journey started with a train ride on 2 June 1930 at quarter past seven in the morning from Basel and they arrived in Leipzig at half passed eight that evening.
The result of this tour was seven games, four wins, one draw, two defeats and approximately 160 hours of travelling.
Jaeck then played two seasons for Servette and returned to his home club Basel in 1932 for four years.
[3] In August 1953 Jaeck suffered a heavy car accident and he died due to the consequences.