Which Turing Award winners have supervised the PhDs of other Turing Award winners?

Question

John McCarthy won the Turing Award in 1971 [1]. Two students whose PhD he supervised went on to win Turing Awards:

• Raj Reddy (1994) [2]
• Barbara Liskov (2008) [3]

What other Turing Award winners supervised the PhD theses of other Turing Award winners?

Answer 1

Consulting with the Mathematics Genealogy Project, I was able to find the following thesis advisor relationships:

• John Hopcroft (1986) advised Alfred Aho (2020)

• Martin Hellman (2015) advised Whitfield Diffie (2015)

• Edmund Clarke (2007) advised E. Allen Emerson (2007)

• Robert Floyd (1978) advised Ron Rivest (2002) and Robert Tarjan (1986)

• Marvin Minsky (1969) advised Manuel Blum (1995) who subsequently advised Shafi Goldwasser (2012), Silvio Micali (2012), and Len Adleman (2002)

• Herb Simon (1975) advised Ed Feigenbaum (1994) who subsequently co-advised Niklaus Wirth (1984)