Ah, that's right. I should have mentioned the family he raised on his travels in more detail. To put it simply, the wife and kids are [url=http://en.wikipedia.org/wiki/Camp_follower]camp followers[/url], and Asher "sired" them during a lull in the unceasing action of tending to refugees and lepers. 

However, I felt these were extraneous details to be revealed in-character, and didn't want to take up more space in the Background. If you want, I can add it in.