James is in Gryffindor Albus who is leaving for Hogwarts at the end of Deathly Hallows WANTS to be - and is scared he will be in Slytherin Lily is too young for Hogwarts at the end of Deathly Hallows
In his will Dumbledore left Harry the Golden Snitch (that Harry had caught in his first Quidditch match) and the sword of Gryffindor (Deathly Hallows Ch. 7) On Harry's first Christmas at Hogwarts - Dumbledore gave him James Potters Invisibilty Cape (Philosophers Stone Ch. 12)
There are many girls in Gryffindor the two most prominent are Hermione Granger, Harry Potter's girl best friend and Ginny Weasley, Ron's younger sister and Harry's wife
Hogwarts exists only in the Harry Potter series.
Rubeus Hagrid lives in a wooden hut (a stone hut in the films) which is situated next to the Forbidden Forest in the grounds of Hogwarts School of Witchcraft and Wizardry.
Petunia and vernon dursley.