Board Thread:Questions and Answers/@comment-29752445-20170415172945/@comment-28958062-20170415205049

Alma was a disgraced woman for having a child out of wedding with a married man, in old times such shame led to the woman being locked in convent or killed on the spot.

Historia was hated by her whole family (minus Frieda) because she was proof of such shame, I dare say they only kept her around to have her eat Frieda instead of some other children of Rod.

Rod came over the estate to take Alma and Historia back right after his wife and children died, this would have brought great shame and disgrace over the Reiss family name.

Kenny hated the idea and made sure such thing couldn't happen then settled with the idea of having Historia die with the Survey Corps under a false name.

It was more of Kenny's decision then the Military Police idea to such thing.