I'm not sure what happened to Dean, but Neville went on to marry Hannah Abbott and he is the Herbology teacher at Hogwarts.
He kills Voldemort's snake, a.k.a. one of the horcruxes. He also gets tortured.
Death Eaters try to trap her, and she escapes and goes into hiding. She fights in the final battle.
Neville was tortured by Death Eaters, specifically by Bellatrix Lestrange, in the seventh book of the Harry Potter series.
Voldemort forces a burning Sorting Hat onto Neville's hat, Neville as a worthy Gryffindor (as Harry was in the second book) pulls the sword out of the Sorting Hat.
Coralie Neville was born on August 7, 1924, in New Zealand.
Most likely -- I mean he could not have killed a snake with an illusion, could he?
Dean Martin was born on June 7, 1917
Dean Stockwell is 5' 7".
Ali Dean is 5' 7".
Kaycee Dean is 5' 7".
Dean Misch is 5' 7".
Dean Kirkright is 5' 7".