[1][2] Hansen was born in 1908, to Lars Christian and Rasmine and was one of three brothers who all went into dirt-track racing (later motorcycle speedway).
[5] West Ham Hammers attempted to sign him in May 1936, but the Speedway Control Board blocked the transfer.
[6] However, later that year, he and another brother Kaj Hansen, also known as Kalle, were due to travel to London to compete in the inaugural 1936 World Championship.
[8] To the annoyance of the other British teams (especially West Ham) the Hackney Wick Wolves were given permission to sign him in June 1936, because of their injury problems.
[9] The transfer started a season long campaign by clubs to ban overseas riders and West Ham unsuccessfully applied to the Control Board to recall Baltzer's brother Morian (who was still on their retained list).