Here it is the succession of PhD advisers and students that goes backwards in time from my own degree. For the later entries it is not clear that there was a formal advisor/student/degree relationship, but there is evidence that one person was influenced in their education by the other. It seems odd that [TCSG] lists Ore as a student of Skolem, with Ore's degree awarded in 1924 while [BDM] lists Skolem's degree as being given in 1926.

- Paul Morris Weichsel (Cal Tech 1960) [MGP]
- Richard Albert Dean (Ohio State 1953) [MGP]
- Marshall Hall, Jr. (Yale University 1936) [MGP][TCSG]
- Öystein Ore (University of Oslo 1924) [MGP][TCSG]
- Albert Thoralf Skolem [TCSG][MHM][BDM]
- Axel Thue [TCSG][MHM] [BDM]
- Marius Sophus Lie [MHM]
- Peter Ludwig Mejdell Sylow [MHM]

The following quotes are from articles in the Biographical Dictionary of Mathematicians [BDM]:

- Skolem: "In the latter year [1916] he returned to Oslo, where he was made Dozent in 1918. He received his doctorate in 1926." (H. Oettel, p. 2296)
- Thue: "Thue enrolled at Oslo University in 1883 and became a candidate for the doctorate in 1889." (Viggo Brun, p. 2460)
- Thue: "During 1890-1891 Thue studied at Leipzig under Sophus Lie..." (Viggo Brun, p. 2460)
- Lie: "He studied at Christiania University from 1859 to 1865, mainly mathematics and sciences. Although mathematics was taught by such people as Bjerknes and Sylow, Lie was not much impressed." (Hans Freudenthal, p. 1588)

- [MGP] Mathematics Genealogy Project
- [TCSG] ACM SIGACT Theoretical Computer Science Genealogy
- [MHM] MacTutor History of Mathematics
- [BDM] Biographical Dictionary of Mathematicians, American Council of Learned Societies, Edited by Charles Coulston Gillispie, Scribner, New York