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Signature of Gregor Mendel

Gregor Mendel

Mendel's autograph signature.

This is Mendel's own handwritten signature, a direct physical trace of him as a historical person.

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Black handwritten cursive signature on white background, reading 'Gregor Mendel' with a smaller abbreviated mark ('Ohh' or similar) written beneath it.
Gregor Mendel, signature, undated.

About this source

What it is

This image shows the handwritten signature of Gregor Mendel, reading 'Gregor Mendel' with a smaller mark beneath it.

Why it matters

A signature is a direct, physical trace of a historical figure's own hand. It is a small but genuine primary source connecting us to Mendel as a real person who signed documents in his own writing, separate from the printed scientific work for which he is remembered.

Look closer

  • What can handwriting tell us about a person that printed text cannot?
  • Why do archives often keep signatures separately from the documents they were on?
  • What might the smaller mark beneath the signature represent?

This document is part of the curated material that grounds the AI version of Gregor Mendel on Humy.ai — when students ask about related events, the AI can quote it and cite it.

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Scan of the first text page of Gregor Mendel's 'Versuche über Pflanzen-Hybriden', with the title, author name, presentation date note, and the opening section 'Einleitende Bemerkungen' in German black-letter-style print on aged paper.Book

Primary source

Versuche über Pflanzen-Hybriden

Gregor Mendel · 1866 (read 1865)

Black-and-white portrait of a man with short wavy hair, wire-rimmed spectacles, and a dark high-collared coat with a white clerical collar, facing the camera against a white background.Photograph

Primary source

Gregor Mendel

Unknown

Black-and-white group photograph of ten monks in long dark robes posed together, with a caption below naming them, including Gregor Mendel, and the title 'Plate III. Gregor Johann Mendel among his Fellow-Monks'.Photograph

Primary source

Mendel with other monks

Unknown

Black-and-white photograph of a long, low wooden building with a corrugated metal roof and a row of small-paned windows, partly overgrown with shrubs and climbing plants. A brick base is visible at right. A printed caption at the bottom reads: Abb. 16 Mendels Bienenstock im Altbrünner Klostergarten.Photograph

Primary source

Mendel's Beehouse

Unknown · before 1909

Black and white studio portrait of a man with short, wavy hair and thin round wire-rimmed glasses, wearing a dark clerical cassock buttoned to the neck with a white collar. A long chain with a cross pendant hangs on his chest. He faces left against a plain grey background.Photograph

Primary source

Gregor Mendel with Cross

Unknown

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