# Donald B. Gillies

> Canadian mathematician and computer scientist (1929–1975)

**Wikidata**: [Q3710399](https://www.wikidata.org/wiki/Q3710399)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Donald_B._Gillies)  
**Source**: https://4ort.xyz/entity/donald-b-gillies

## Summary
Donald B. Gillies (1929–1975) was a Canadian mathematician and computer scientist. He was a professor at the University of Illinois Urbana–Champaign and was a doctoral student of the influential mathematician John von Neumann. Gillies is noted for his role in academia and for advising several Ph.D. students who continued in the field of computer science.

## Biography
- **Born**: 1929-10-15 in Toronto
- **Nationality**: Canada
- **Education**: University of Toronto Schools, University of Toronto, Princeton University, University of Illinois Urbana–Champaign
- **Known for**: Contributions to mathematics and computer science as a professor and doctoral advisor.
- **Employer(s)**: University of Illinois Urbana–Champaign
- **Field(s)**: Mathematics, computer science, engineering

## Contributions
The available information highlights Donald B. Gillies's contributions primarily through his academic and mentorship roles. As a professor at the University of Illinois Urbana–Champaign, a major center for computer science research, he was integral to the education and development of new talent in the field.

His most documented contribution is his work as a doctoral advisor. He guided numerous students to the completion of their Ph.D.s, directly shaping the next generation of computer scientists and academics. His students included Lawrence Joseph Henschen, Milos Dragutin Ercegovac, Richard D. Jenks, Leland K. McDowell, Allan McInnes, and Tzu-Sien Shao. By mentoring these individuals, Gillies's influence extended through their subsequent careers and contributions to computer science. His academic lineage, which connects back to his own advisor, John von Neumann, places him in a significant line of intellectual heritage in the history of computing.

## FAQs
### Q: Who was Donald B. Gillies?
A: Donald B. Gillies was a Canadian mathematician, computer scientist, and engineer who worked as a professor at the University of Illinois Urbana–Champaign. He was born in Toronto in 1929 and died in Urbana in 1975.

### Q: Who was Donald B. Gillies's doctoral advisor?
A: His doctoral advisor was the renowned Hungarian-American mathematician and physicist John von Neumann. This connection places Gillies in a direct academic lineage with one of the foundational figures of modern computing.

### Q: What institutions was Donald B. Gillies associated with?
A: Gillies was employed by the University of Illinois Urbana–Champaign. He was educated at several institutions, including the University of Toronto, Princeton University, and the University of Illinois Urbana–Champaign.

## Why They Matter
Donald B. Gillies's significance lies in his role as an educator and a key link in the academic genealogy of computer science. As a doctoral student of John von Neumann, Gillies was part of the first generation of academics who transitioned the theoretical work of computing pioneers into a formal university discipline. His position at the University of Illinois Urbana–Champaign, a powerhouse in the development of computing, placed him at the center of this academic expansion.

His most lasting impact was his mentorship of doctoral students. By supervising the research of individuals like Lawrence Joseph Henschen and Richard D. Jenks, he helped cultivate the next wave of computer scientists. The work and influence of his students are a direct extension of his legacy. Without educators like Gillies translating foundational knowledge and fostering new research, the academic field of computer science would not have grown as rapidly or robustly as it did during that formative period.

## Notable For
*   **Academic Lineage**: Was a doctoral student of John von Neumann, a principal figure in the history of mathematics and computer science.
*   **Professorship**: Served as a professor at the University of Illinois Urbana–Champaign, a leading institution in the field of computer science.
*   **Doctoral Supervision**: Advised several Ph.D. students who went on to have careers in computer science, including Lawrence Joseph Henschen, Milos Dragutin Ercegovac, and Richard D. Jenks.
*   **Multidisciplinary Expertise**: Worked across the fields of mathematics, computer science, and engineering.

## Body
### Personal and Educational Background
*   **Full Name**: Donald Bruce Gillies
*   **Date of Birth**: 1929-10-15
*   **Place of Birth**: Toronto, Canada
*   **Date of Death**: 1975-07-17
*   **Place of Death**: Urbana, Illinois, USA
*   **Citizenship**: Canada
*   **Gender**: Male

Gillies received his education from several prominent institutions:
*   University of Toronto Schools
*   University of Toronto
*   Princeton University
*   University of Illinois Urbana–Champaign

### Academic Career
Donald B. Gillies was a professor at the University of Illinois Urbana–Champaign. His work spanned multiple disciplines, with official occupations listed as mathematician, computer scientist, and engineer.

### Academic Mentorship
A significant part of Gillies's career was his role in supervising doctoral students.
*   **Doctoral Advisor**: John von Neumann
*   **Doctoral Students**:
    *   Milos Dragutin Ercegovac
    *   Lawrence Joseph Henschen
    *   Richard D. Jenks
    *   Leland K. McDowell
    *   Allan McInnes
    *   Tzu-Sien Shao

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## References

1. Mathematics Genealogy Project