Lucy MacCready

 was the late wife of Robert MacCready and mother of Duncan, their son.

Background
MacCready met her shortly after leaving Little Lamplight in 2281. Though he was a professional mercenary, he told her that he was a soldier instead, afraid to lose her. The two fell in love and wandered the Wasteland together, with Duncan born on the road. Lucy always had MacCready's back and helped him through the darkest of nights in the wasteland. With her at his side, he could press ahead no matter the horrors that faced him. They would have lived a long, happy life, if they didn't decide to camp in an abandoned metro station full of feral ghouls. Lucy was killed, swarmed by the ferals and torn apart before MacCready could fire a shot. Her death buying enough time for her husband and son to flee with their lives. MacCready is plagued by the memory of her death, haunted by the fact that he never told her the truth. He continues to carry a memento reminding him of her: A little carved toy soldier she made for him when they first met.

Her death shifted MacCready's perspective on life and himself. Up until then, he was a killer, shooting people for a living, but now he was determined to change himself. He made a promise to Duncan to clean up his act and be a better person... Starting with swearing off cursing. He settled down and built a homestead. Everything was peaceful for a time as MacCready worked the land and Duncan grew. His almost idyllic life came to an end when his son was exposed to something in their fields and the next day developed a fever accompanied by blue boils all over his body. The disease sapped his strength and by the time he decided to hit the road and find a cure, he was almost too weak to walk. He entrusted his child to the care of his friends and departed.

Appearances
is mentioned only in Fallout 4.