Ian Duck to Mary Hopkin in 8 Steps
- Ian Duck was a member of Hookfoot
- Hookfoot members included Caleb Quaye
- Caleb Quaye was born on October 9
- October 9 is the birthday of John Lennon
- John Lennon wrote She's Leaving Home
- She's Leaving Home was written by Paul McCartney
- Paul McCartney produced Mary Hopkin's recording of The Puppy Song
- The Puppy Song was recorded by Mary Hopkin