Hannah

 was Old Longfellow's lover her kidnapping and brainwashing into the Children of Atom.

Background
When Old Longfellow was a young man, he and Hannah fell in love with each other and they planned a future together. One day their were attacked by the Children of Atom at their hideaway deep within the fog. Left for dead, Longfellow eventually made it to civilization. It took two months to recover from his injuries. But by then it was too late: The zealots warped Hannah's mind, and brainwashed her to their ways. The child she carried was stillborn, due to the radiation she was exposed to. By the time she died to trappers a few years later, Longfellow was well on his way to becoming an embittered shell of a man. He most regrets the death of his child. While Hannah may have chosen the path of Atom, the loss of an heir, someone to pass all his knowledge to, gnaws at him incessantly. Until the Sole Survivor comes around... Old Longfellow: "Say, cap'n, can we talk for a minute?" The Sole Survivor: "Alright, let's talk." Old Longfellow: ''"I appreciate it, cap'n. At my age, any chance to make a new friend is... well, it ain't somethin' I'd expect to happen much, but I'm glad it did. There're more to it than that, though. Long time ago, when I was a young man, I had a sweetheart. Hannah was her name, and we planned to get married, raise a family an' all that. Well, we had a place out in the Fog we used to meet, so we could be alone. Damn Children of Atom jumped us. They took her an' left me for dead. Took two months to recover from my injuries. By then it was too late. They'd warped her mind, an' turned her to their ways. Was only later I learned she was carryin' our child. Of course, the baby didn't stand a chance with all that radiation. Atom's will, she called it. Anyway, she died a few years later. Trappers got her, or so them lunatics said. I guess that was Atom's will, too." The Sole Survivor: "This is very personal information, Longfellow. Why tell me now?" Old Longfellow: "Cause I need you to know where I'm comin' from. Truth is, what happened to Hannah was her choice, an' so be it. But I never got to be a father, an' that's what I regret. If I had a son or daughter, well, I'd have someone to pass on all my learnin' to. But you, you're the first person I've met that's worth teachin' what I've got to teach. I ain't good with tellin' people that I'm grateful, but you've given this old hunter a sense of purpose, an' a reason for livin'." The Sole Survivor: "You really mean that?" Old Longfellow: "Every word of it, cap'n. Well, that was all I had to say. I appreciate you hearin' me out."'' (Old Longfellow's dialogue)

Appearances
is mentioned only in the Fallout 4 add-on Far Harbor.