Please, everyone knows that the Vault-Tec Salesman is actually going too be the Overseer of Vault 111. He's in fact obsessed with Nora and that's the only reason why the family got into the Vault in the first place! He woke up 200 years later, and took over the Institute, than returned too find his obsession.
If you play Howard the husband, he finds her and takes her and her son away with him. Making her believe poor old Howard died when his cryogenic pods' power failed. However, as hubby becomes more (in)famous, she discovers that he lied too her about him, and silently works to undermine him.
If you play Nora the wife, he couldn't locate her pod due to screwed up records, but did find her hubby and son; kept hubby on ice and has been raising baby Shaun as his own, so he can pull her in and trap her...