User blog comment:Supereinstien001/Was James Potter Head Boy?/@comment-4643582-20120331170307/@comment-217.164.9.142-20120402084033

Your answer is logical and is backed up with good evidence, Wva.

My reasoning is that maybe James Potter wasn't a good candidate for a Prefect in his fifth year at Hogwarts School of Witchcraft and Wizardry. However, it is possible that as he grew older and more mature, and "deflated his head a bit", he became a suitable candidate for Head Boy. There are many positive qualities that James might not have had in his younger days, but which he acquired later in his education. Harry Potter discusses this with Sirius Black and Remus Lupin in his fifth year at Hogwarts

Hope to have been of help!

V.S.