Here is a list of all the families in the epilogue
It includes children that are yet to be conceived so I have put the year of their birth in brackets.
Lily Evans and James Potter
Harry James Potter (1980) - Gryffindor
Ellie Dorea Potter (1984) (Harry is very protective of his little sister) - Gryffindor
Hermione Potter and Sirius Black
Lavinia Estelle Black (1980) (nicknamed Livvy) - Ravenclaw
Leo Granger Black (1981) (keeping up with Black Family traditions, he is named after a constellation) - Gryffindor
Gloria Heloise Black (1985) - Gryffindor
Elizabeth Ginevra Black (1997) (nicknamed Beth) - Ravenclaw
Nymphadora Tonks and Remus Lupin
Ted Remus Lupin (1997) - Gryffindor
Aurelia Mharielle Lupin(2000) - Hufflepuff
Heloise Dinkley and Xenophilius Lovegood
Luna Lovegood (1981)(who married Rolf Scamander, has twin boys Lorcan and Lysander) - Ravenclaw
Alice Hughes and Frank Longbottom
Neville Longbottom (1980) – Gryffindor
Ginevra Weasley and Harry Potter
James Sirius (2002) (nicknamed Jamie, so that he could be told apart from his grandfather) - Gryffindor
Albus Severus (2004) (nicknamed Al, because he was jealous that his siblings had nicknames and he didn't) - Gryffindor
Lily Luna (2006) (nicknamed Sunshine, so that she could be told apart from her grandmother) - Gryffindor
All other pairings are canon, except for:
Pansy Parkinson and Ronald Weasley
Desmond (2000) (nicknamed Des) - Slytherin
Nell (2001) (Real name is Eleanor, but she refuses to use it, says it's too girly) - Slytherin
Sebastian (2004) (nicknamed Seb) – Gryffindor
Family of Marlene:
Marlene Alera McKinnon (Age 19, 1979)
Mother – Mrs Alera Elspeth McKinnon
Father – Mr Cygnus Ezra McKinnon
Sister – Lisette Belvina McKinnon (Age 14, 1979)
Sister – Della Camille McKinnon (Age 10, 1979)
Brother – Wilbur Cygnus McKinnon (Age 20
Remember Kenneth Webster who was supposed to share a dorm with the Marauders:
Mother – Mary Webster (Half-blood)
Father – John Webster (Muggle-born)
Younger brother – Brandon Webster