This is the children's of Nathan White and Phoebe Grey, Danielle White and Theodore Grey & Rachel Lincoln and Theodore Grey.
Phoebe & Nathan White’s children
Rebecca Grace “Becca” White, II is the firstborn child and daughter of Nathan and Phoebe White. She was born on the 14th of April 2035. She has a younger sister named Amelia White, who is an infant as of the Epilogue (set on February 2, 2040). Nickname “Becca”, she was named after Nathan’s grandmother, Rebecca White, and Phoebe’s grandmother, Grace Grey. She said to be a very shy and beautiful girl like her mother. Though Phoebe says that Nathan has much more patience with her and she plays with her but with regard to the girl's stuff then Nathan is not know how to handle them and asks Phoebe’s help. Nathan mentions that Phoebe is “very good” to her, revealing Nathan’s insecurity and still-growing adjustment to fatherhood. He is also said to have inherited Nathan’s dark brown-coloured hair but has Phoebe’s blue eyes and innocent look. While pregnant with Amelia, Phoebe named nickname to her “Millie”. Nathan states that she nearly died, much to Phoebe’s denial. Phoebe was in labour for 17 hours with Rebecca. All Phoebe’s family members were worried that she does not survive and dies but the doctor said that Phoebe was strong and survived. She has two cousins named Christian Grey II and Theodora Grey who is the children of her father’s sister, Danielle, and her mother’s brother, Teddy.
Amelia Erika “Melly” White is the second daughter and youngest child of Nathan White and Phoebe Grey (White) and the younger sister of Rebecca Grace White. During the events of the epilogue, we learn that Phoebe is eight months pregnant with a second child. Millie is an active baby in the womb-like her mother was once when grandmother expecting her and Ana mentions that is must be the genes “Like mother, like daughter”. Nathan is incredibly nervous about having another female child and shows over-protectiveness of his two daughters, stating that they will not be allowed to have sex until they becoming an adult age.
Arthur Charles White, formerly known as Sean Thompson is the adoptive son of a millionaire man named Nathan White and a former personal assistant woman named Phoebe Grey, the biological son of a man named Marcus Walker and a woman named Jessica Thompson, the oldest adoptive brother of Rebecca and Amelia White, the adoptive grandson of Anastasia and Christian Grey & Charlotte and Steven White, the biological grandson of Dorothy and Thomas Thompson. Sean was adopted when her mother, Jessica goes to prison for killing two innocent peoples and Sean's father, Marcus gets arrested for aiding kidnapping Nathan and Phoebe's first daughter, Rebecca White.
Rachel Lincoln & Theodore Grey children
Isabella “Ella” Grey was the only infant baby daughter of Rachel Lincoln and Theodore Grey but she died after two months later her 1 month of birthday and Theodore blamed the death of her daughter himself because he had not been at her side all time. After their daughter’s death, Rachel started mental problems and began seeing hallucinations. Theodore took her to the doctorate, but Rachel refused to go to the doctor because she claims that she is all right and she was going to a psychiatric hospital, where she had a month to heal.
Danielle & Theodore Grey’s children
Christian Steven “Chris” Grey, II & Theodora Anastasia Grey are twin siblings when Danielle is pregnant on epilogue and they will be born May 7th 2040 and it is mentioned but not show them at the end, because it's when the book ends and Teddy does not know that his wife is waiting for the twins (possible secretly she told her sister-in-law, Phoebe)
