Whakaotihia te rerenga e whai ake nei: I whanau a Ehlers i Denmark engari i neke ki Tiamana i te wa o tana tamarikitanga i te wa e takaro ana tana papa, a Heinz, ki te hockey i reira. I tākaro a Heinz i ētahi riiki i Uropi, ā, i tīpakohia e te New York Rangers i te tau kotahi mano tekau mā iwa.
1984 NHL Entry Draft, ahakoa kaore ia i takaro i Amerika ki te Raki. I muri i tana mahi takaro ka noho a Heinz hei kaiako, a ko ia te kaiako matua o te SCL Tigers i te Swiss National League A. Ka hoki mai a Ehlers ki Denmark mo etahi tau, ka hoki ki Switzerland i te 2007 i te wa i riro ai tana papa i te tuunga kaiako. Ko Sebastian Ehlers, te tuakana o Nikolaj e toru tau te pakeke, kei te takaro mo nga Odense Bulldogs i te AL-Bank Ligaen, te riiki nui i Denmark. He tuahine iti anō tōna, ko Caroline. Ko te kaitiaki o San Jose Sharks a Alexander True te whanaunga o Ehlers.