Findings:

• Kernighan and Ritchie (user)
• Dennis Ritchie
• Ritchie Valens
• Brian Ritchie
• John Simon Ritchie
• Fiona Ritchie
• Guy Ritchie
• Let's Run Over Lionel Richie With A Tank
• Ritchie Blackmore
• ritchie (user)
• Nicole Richie
• David George Ritchie
• Charles Thomson Ritchie, 1st Baron Ritchie
• Baron Ritchie
• Lionel Ritchie (user)

If you Log in you could create a "Ritchie *" node. If you don't already have an account, you can register here.