I don't think the husband is alive, he is officially dead. When Olga said that when a person died they return back to the church but I'm guessing that applies to adventurers only.Her husband was probably brought back to life. This is based on Dragon Quest, where you have your dead team members in coffins that follow you around until you can get back to a church to have them revived. We know this works here too as this method was mentioned before by Olga when they were in the dungeon.
This page here.