CACrown ArchivesThe cinema collection
Menu
Research dossier · Science & Nature

Ida Augusta Keller

American plant physiologist and teacher (1866-1932)

Specimen drawers, botanical folios and brass scientific instruments under study light
Science and natureInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionAug 31, 2026
Entity authorityQ18631896 ↗
Source-derived summary

Ida Augusta Keller (June 11, 1866 – September 10, 1932) was an American plant physiologist and teacher in Philadelphia.

Early life and family

Ida Keller was born in on June 11, 1866 to William Charles Christian and Maria Augusta (née Cramer) Keller in Darmstadt, Grand Duchy of Hesse, while her parents were visiting their former home. She grew up in Philadelphia, where her father was a physician, and was graduated from the Philadelphia High School for Girls in 1884.

She attended the University of Pennsylvania from 1884 to 1886; as the first woman to complete the two-year course in biology, she received a Certificate of Proficiency in Biology. (This institution did not grant degrees to women at the time.) After working as an assistant in the herbarium at Bryn Mawr College for a year, she attended the University of Leipzig for two years, studying chemistry with Friedrich Stohmann and plant physiology with Wilhelm Pfeffer. She did her doctoral work at the University of Zurich, studying with Arnold Dodel-Port (de). In 1890, on completion of her dissertation, titled Über Protoplasma-Strömung im Pflanzenreich (On Protoplasmic Flow in the Plant Kingdom), she received a PhD degree.

Ida had a brother, Harry Frederick Keller, who was educated as a chemist and also taught in Philadelphia public schools.

Career

After receiving her doctorate, Ida Keller returned to Bryn Mawr as lecturer in botany for two years. In 1893, she became a teacher of chemistry at the Philadelphia High School for Girls, where she herself had attended.

Editorial summary

This brief starts where responsible research should: with the source description of “Ida Augusta Keller” as american plant physiologist and teacher (1866-1932). Everything that follows is an evidence route, not borrowed authority.

Editorial reviewUseful for establishing the present vocabulary of the subject while preserving a route back to the evidence on which that vocabulary rests. The current lead gives the account dated anchors—1866, 1932, 1884, 1886—that can be checked directly. The linked authority record independently contributes the date 1866-06-11. The account is most persuasive where Augusta, Keller and American can be independently traced.
Editorial analysis

Why this record matters

The subject matters to the science & nature register because the source frames it as american plant physiologist and teacher (1866-1932). Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Aug 31, 2026. The linked authority identifier is Q18631896. VIAF identifies the subject as 1621145856998122920836. 2 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1866, 1932, 1884 and 1886.

Critical limits

Current terminology should not be projected backward without checking the classification used when the underlying evidence was created. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Check terminology, classification and the date of the cited evidence. Scientific names and technical consensus can change while older records retain historical value.

Best used for
  • Current terminology
  • Classification context
  • Finding cited technical literature
Verify next

Primary datasets, specimen catalogues, standards bodies and the most recent peer-reviewed literature.

Three-step research path

  1. Establish the record: confirm the title “Ida Augusta Keller”, its source revision and the description used here.
  2. Expand the search: follow Ida Augusta Keller primary sources, Ida Augusta Keller archive and Augusta research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Ida Augusta Keller”?
  2. Has classification or technical consensus changed since the cited source?
  3. Is the terminology current, historical or disputed?
Subject index

Search terms from this dossier

Source & attribution

This entry incorporates text from “Ida Augusta Keller” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.