Here's a list of Cannon Characters (only Students), their parents, and their ages in case you want to make them. You DO NOT NEED PERMISSION. I changed the ages around, therefore changed the Harry Potter books timelines, but please forgive me, because if I hadn't the charecters wouldn't be at Hogwarts now. Ok? Ok.
Cannon Characters:
The Potters (Harry and Ginny)
Lily Luna Potter -11
Albus Severus Potter- 13
James Sirius Potter-14
The Weasleys ( Ron and Hermione)
Hugo Weasley- 11
Rose Weasley- 13
The Weasleys (Fleur and Bill)
Victoire Weasley-16
Dominique Weasley-14
Louis Weasley-12
The Weasleys (George and Angelina)
Fred Weasley (Jr.)-12
Roxanne Weasley-13
The Malfoy kids (Draco Malfoy and Asteria Greengrass)
Scorpius Hyperion Malfoy- 13
The Scamanders (Luna Lovegood and Rolf Scamander)
Lorcan Scamander-12
Lysander Scamander-12
The Weasleys (Audrey and Percy)
Molly Weasley (Jr.)-12
Lucy Weasley- 11