Academic Ancestry

a person in the record

Albertus Antonie Nijland

Dutch astronomer1868 to 1936

Wikidata names Jean Abraham Chrétien Oudemans and Willem Kapteyn as doctoral advisors, lists 16 doctoral students, and lists 1 person they taught. Linked to Wikidata, Mathematics Genealogy Project, and 5 other registers.

Open the full sheetCiteData
Albertus Antonie Nijland, pictured

Two steps up and one down. Solid lines from Wikidata. The full sheet opens at four up and two down.

How to read the marksstated by Wikidata or indexed by OpenAlex

Advisors on Wikidata2

From Wikidata, shown separately from the thesis records.

Students on Wikidata16

From Wikidata, shown separately from the thesis records.

Taught1

Wikidata's "student of" and "student" statements: a line of training beside the lineage, never a thesis supervision and never counted with one.

  • a teacher or mentor, stated by Wikidata: not a thesis supervision

    Ejnar Hertzsprung

    born 1873

The line above and below4 steps

The advisors of their advisors, four steps up at most, in the thesis records and on Wikidata, each kind marked; a person in both is listed once.

Below them, within 3 steps, the record reaches 16 people: 16 stated by Wikidata.

Education and career3

From Wikidata, shown separately from the thesis records. Each place opens its Wikidata item.