I noticed in the birth record for Else Ingeborg that the father is listed as having been born in Tolga. Here is a Martin with father named Johans born in Tolga on May 25, 1885.See number 6. Is he a possibility.
It can be him from Tolga, Rendalen is up around Tolga, too, the name is Morten and the father is Johan Mortensen in the christening, but Martin can changed it from Morten to Martin, will chech that. Thanks!