Complex sentence: Toponymist Adrian Room has suggested McKernan was given the name due to his untidy and unclean habits while band biographies say he got the nickname owing to his similarity to Pig-Pen, the permanently dirty character in the comic-strip "Peanuts".
Split into simpler sentences: Toponymist Adrian Room has suggested McKernan was given the name due to his untidy and unclean habits. Other accounts claim that he got the nickname owing to his similarity to Pig-Pen, the permanently dirty character in the comic-strip "Peanuts".