EntityQ4156564· pop 7· linked from 9 articlesSergey DegayevSign in to saveRussian double agent and American mathematician (1857–1921)PersonBorn1857-09-25Died1921-01-01via Open Library + WikidataKey datesBorn25 September 1857Died1 January 1921via Wikidata · CC0Wikidata factsInstance ofhumanGiven nameSergeyGendermaleCitizenshipRussian EmpirePlace of birthMoscowPlace of deathBryn MawrSpouseAnna Johnson Pell WheelerOccupationinformantEducated atMikhailovsky Artillery SchoolPolitical partyNarodnaya VolyaConnectionsTable of RanksEntitySwitzerlandCountryCategories1857 births1921 deaths20th-century American mathematiciansEmigrants from the Russian Empire to the United StatesIllinois Institute of Technology facultyJohns Hopkins University alumniOkhrana informantsPeople from Vermillion, South DakotaRevolutionaries from the Russian EmpireUniversity of South Dakota faculty