text:  He is the great @-@ nephew of astronomer Clyde <unk> , the <unk> of Pluto . <unk> 's mother , born <unk> <unk> , is the daughter of Clyde <unk> 's younger brother . His father , Christopher George <unk> , was a musician and won a <unk> Award for his work . The elder <unk> remarried after his divorce from <unk> and died in 2013 . 
  