Yes, this needs to be noted. It's more common for someone to get it wrong than for someone to get it right.
My last name is pronounced 'ALL-er-mann'. 'ALL' as in 'All My Children'. Not 'AL-er-mann' as in 'Al Bundy'. The last two syllables, 'er-mann', are pronouced- and spelled- exactly the same as that of Keith Olbermann. There are two N's in my last name, not one. And definately not three.
Ways my last name is not pronounced:
And while we're at it, 'Aaron' is pronounced the same way as everyone else's 'Aaron'. It is not pronounced 'A-RON'. It is spelled with two A's, not one.