In the 1906--07 season, Lehman was signed as free agent by the Canadian Soo of the International Professional Hockey League (IPHL); the IPHL was the first fully professional ice hockey league.
Lehman was signed as free agent by the Canadian Soo of the International Professional Hockey League (IPHL). This was in the 1906--07 season. The IPHL was the first fully professional ice hockey league.