Jamie marries Claire to keep her from falling into the hands of the evil Captain "Black Jack" Randall. They have one child, Faith, who doesn't survive birth; an adopted son named Fergus; and a daughter, Brianna.
The simple answer is no. Claire and Jamie don't have any more children after Brianna. Claire heads through the stones while pregnant with Brianna at the end of the second season/book.
After the dust has settled, and with assistance from Ned Gowan, Jamie's marriage to Laoghaire is declared invalid – as Claire was clearly still alive – and he agrees to pay her a yearly fee and provide a dowry for each of her two daughters.
If we're looking for the straight answer, it's two. Claire and Jamie only have two biological children together: Faith and Brianna. Faith was the stillborn baby in France. Mother Hildegarde baptized the child despite it being against the law, and Jamie never got to see her.
Claire Meets Jamie's Son and Saves Lord John Grey on Outlander - Outlander Season 4 Episode 6.
Just as she begins to worry that Jamie might be capable of lying to her, Jamie quells her fear by revealing to her his indiscretion with Mary MacNab, a woman who worked at Lallybroch, while Claire was back in 1968 with Frank and Brianna. This confession soothes Claire, and the two find themselves realigned once again.
Unable to sleep, Claire heads to Colum's library to borrow a book, and ends up eavesdropping on a conversation between Colum and Dougal. She discerns that Dougal has gotten Laoghaire pregnant.
Jamie also has two stepdaughters, Marsali MacKimmie Fraser and Joan MacKimmie, from his marriage to his second wife, Laoghaire MacKenzie.
Claire Fraser was born on October 20, 1918.
That would make her 27-and-a-half at the time she and Jamie meet in the books, while Jamie's barely 22. This would make Claire five and a half years older than Jamie.
Because yes, Claire and Lord John end up married in book seven, and yes, they drunkenly (and full of grief for the loss of Jamie, whom they both love with all of their heart) consummate that marriage. And then Jamie shows up alive and well!
Brianna and Roger grow their family in Go Tell the Bees That I Am Gone. It turns out that they do have another baby.
Brianna gives birth to Jeremiah in mid-May 1770. It is unclear whether the boy's father is her hand-fast husband Roger MacKenzie, or her rapist Stephen Bonnet. In June 1770, Roger finally arrives at the Ridge, vowing to take Brianna's child as his own, regardless of its paternity.
When Claire returns to the past, she and Jamie reconnect and begin to live as man and wife once again. But some might be wondering what the legal implications of Jamie's marriage to Laoghaire might mean. Given he remarried after Claire, it seems possible their marriage might be void after all.
The Fiery Cross
Claire and Jamie care for her and give her goat's milk, keeping her warm as they bring her into Brownsville. Once in Brownsville, they find a nursing mother to feed the child, and Richard Brown makes the executive decision to take her in and raise her as his.
William Ransom is the secret illegitimate son of Geneva Dunsany and Jamie Fraser. Legally, he is the son and heir of Ludovic Ransom, Eighth Earl of Ellesmere, who was his mother's husband at the time of his birth.
In early 1779, pregnant Marsali, Fergus and their daughters Joan and Félicité settle in Wilmington. Their eldest son, Germain, returns to Fraser's Ridge with his grandparents, Jamie and Claire, as Fergus and Marsali think that it is dangerous for a boy Germain's age to live in a large city in time of war.
The killer is in fact Malva's brother, Allan Christie (Alexander Vlahos). He is also the father of her baby, having raped and abused Malva since she was a child. Malva had decided to tell the truth, which is why Allan killed her.
Jamie denies having slept with her, but the damage to his and to Claire's reputation is done—and the bond between the Frasers and Malva is severed, until just a few weeks later, when Claire finds Malva murdered in the garden. “It's like the peak of the tragedy, and it's so visceral.
William Buccleigh MacKenzie is the illegitimate son of Dougal MacKenzie and Geillis Duncan, and was raised by William John and Sarah MacKenzie.
The writers of Outlander made a big change to the series from the source material in season three. In the third outing, Jamie Fraser (played by Sam Heughan) tied the knot with Laoghaire MacKenzie (Nell Hudson) during the 20 years while Claire (Caitriona Balfe) was in the future.
While Brianna knows who William is, William does not yet know that Jamie is his father and that Brianna is his sister. He doesn't discover the connection until late in book seven, when he finds himself in Jamie's company and finally sees the resemblance between them.
Jamie does admit he's slept with someone else, telling her about his one-night tryst with Mary MacNab (Emma Campbell-Jones) before he turned himself in to authorities following the Battle of Culloden nearly 20 years prior.
Jamie doesn't really help matters by choosing this moment to confess that he has cheated – but not with Malva. Instead, he spent one night with someone else before going to prison, long ago (and when separated from Claire by 200 years).
Director Brendan Maher told Vulture that while both Menzies and Heughan had stunt doubles for the physically demanding sequence, neither used them much. “We had people for safety, just in case, but the nature of the work is that you want the actors to do as much as they possibly can,” Maher said.