Justice Ginsburg - her husband, Martin Ginsburg, died of complications from metastatic cancer on June 27, 2010 , she has two children: Jane Ginsburg and James Steven Ginsburg
Justice Sotomayor - On August 14, 1976, just after graduating from Princeton, Sotomayor married Kevin Edward Noonan, whom she had dated since high school, in a small chapel at St. Patrick's Cathedral in New York. She used the married name Sonia Sotomayor de Noonan. He became a biologist and a patent lawyer. .... SNIP .... She and Noonan divorced amicably in 1983; they did not have children.
Justice Roberts - Roberts married Jane Sullivan in Washington in 1996. She is an attorney, a Catholic, and a trustee (along with Clarence Thomas) at her alma mater, the College of the Holy Cross in Worcester, Massachusetts. The couple adopted two children, John (Jack) and Josephine (Josie).
Justice Scalia - On September 10, 1960, Scalia married Maureen McCarthy, whom he met on a blind date while he was at Harvard Law School. Maureen Scalia had been an undergraduate at Radcliffe College when the two met, and subsequently obtained a degree in English from the school. The couple raised nine children, five boys and four girls.
Justice Kennedy - wife's name is Mary Davis. (Quite mysterious. There is nothing listed regarding his wife other than her name on Wikipedia.org no children names listed either) From McClatchyDC.com regarding his wife: Mary - a former teacher at Sacramento's Golden Empire Elementary School....
Justice Breyer - In 1967, he married Hon. Joanna Freda Hare, a psychologist and member of the British aristocracy (the youngest daughter of John Hare, 1st Viscount Blakenham). The Breyers have three adult children, Chloe (an Episcopal priest, and author of The Close), Nell, and Michael.
Justice Alito - Since 1985, Alito has been married to Martha-Ann Alito (born Martha-Ann Bomgardner), once a law librarian who met Alito due to his many trips to the library as a legal clerk;<9> she has family roots in Oklahoma. They have two college-age children: Philip and Laura. Alito resided with his family in West Caldwell, New Jersey before his Supreme Court nomination. He has since moved to a home in Washington D.C..
Justice Thomas - In 1971 Thomas married college sweetheart Kathy Grace Ambush. They had one child, Jamal Adeen. In 1981 they separated and in 1984 divorced. In 1987, Thomas married Virginia Lamp, a lobbyist, aide to Congressman Dick Armey, and subsequently an executive director at the conservative Heritage Foundation. In 1997, they took in Thomas' then six-year-old great nephew, Mark Martin, Jr., who had lived with his mother in Savannah public housing.
Soon to be Justice Kagan - has never married, no children
(Retired)Justice O'connor - On December 20, 1952, she married John Jay O'Connor (John J. O'Connor III) and they have three sons: Scott, Brian, and Jay. Her husband suffered from Alzheimer's disease for nearly twenty years prior to his death.... SNIP .... John O'Connor died on November 11, 2009, aged 79
(Retired) Justice Souter - has never married, no children
(Retired) Justice Stevens - married Elizabeth Jane Shereen in June 1942. Divorcing her in 1979, he married Maryan Mulholland Simon that December. He has four children: John Joseph (who died of cancer in 1996), Kathryn, Elizabeth and Susan.
Here's a link to the Wiki SCOTUS page:
http://en.wikipedia.org/wiki/Supreme_Court_of_the_United_StatesYou can click on the Justices' names down the page where their photos are if you want to learn more about each of them.