A Fellow of St John's College, where he was also organist, Rootham ran the Cambridge University Musical Society, whose innovative concert programming helped form English musical tastes of the time.
A fost unul dintre seniorii al Colegiului St John's, unde a fost, de asemenea, organist, Rootham a condus Societatea Muzicală de la Universitatea Cambridge, al cărui concert programator inovator a ajutat la formarea gusturilor muzicale engleze ale acelor timpuri.