Dime’s Collectors Guide · Listed artists · Signatures · Museum works
Artist biographies

Signatures are clues, not proof.

A growing guide to listed artists, their lives, documented signature examples, and representative museum works. Always compare the signature with the materials, age, surface, provenance, and the work itself.

Collector note: signatures can change across a career and are frequently copied. These examples support research; they do not authenticate an artwork.
Local first

Born in Cincinnati

Birthplace verified in museum records.

Cincinnati-born

Edward Henry Potthast

1857–1927 · American Impressionist

A Cincinnati native celebrated for bright, animated scenes of people at the shore. He worked in oil, watercolor, pastel, and printmaking, and also painted European laborers, harbors, landscapes, and portraits.

Signature study
Compare the full “Edward H. Potthast” or abbreviated forms only with museum-held works in the same medium and period.
Featured work
A Sailing Party (Going for a Sail), circa 1924
Cincinnati Art Museum record →
Cincinnati-born

John Henry Twachtman

1853–1902 · American Impressionist

Twachtman studied at Cincinnati’s McMicken School of Design and with Frank Duveneck before training in Munich and Paris. His mature landscapes are known for quiet tonal harmonies, spare design, and atmospheric paint handling.

Signature study
Use dated museum examples; his restrained late pictures require the signature, surface, and handling to agree.
Featured work
Winter Harmony, circa 1890–1900
National Gallery of Art record →
Cincinnati-born

Tom Wesselmann

1931–2004 · Pop artist

Wesselmann was a leading figure in American Pop art, using bold color, advertising imagery, collage, and shaped supports. His still lifes and Great American Nude series turned familiar consumer imagery into large, graphic compositions.

Signature study
Copyright-era artist: rely on documented provenance, gallery records, and a recognized catalogue—not an isolated online signature image.
Featured work
Still Life #12, 1962
Smithsonian museum record →
Regional art history

The Cincinnati circle

Trained, taught, or built careers here—but not Cincinnati-born.

Mount Healthy-born · Cincinnati-trained

Elizabeth Nourse

1859–1938 · American painter

Born in Mount Healthy, Ohio, Nourse trained at Cincinnati’s McMicken School of Design and later established a successful career in Paris. Her empathetic, unsentimental paintings often center rural working women and family life.

Signature study
Compare signed paintings and works on paper separately; medium and period matter.
Featured work
Fisher Girl of Picardy, 1889
Smithsonian museum record →
Covington-born · Cincinnati teacher

Frank Duveneck

1848–1919 · American painter

Born across the river in Covington, Kentucky, Duveneck became one of Cincinnati’s most influential painters and teachers. His Munich-trained, dark-toned realism and direct brushwork shaped a generation of students.

Signature study
Study signatures alongside his changing early, Munich, portrait, and later Cincinnati periods.
Featured work
Whistling Boy, 1872
Smithsonian artist record →
Bridgeport-born · Cincinnati-trained

Joseph Henry Sharp

1859–1953 · Painter of the American West

Sharp entered Cincinnati’s McMicken School of Design at fourteen and later taught at the Cincinnati Art Academy. He became a charter member of the Taos Society of Artists and is known for portraits and scenes of Native American life.

Signature study
Records also list him as “J. H. Sharp.” Compare the exact form with documented works of similar date and subject.
Featured collection
Portraits and western subjects at the Smithsonian
Smithsonian artist record →
New York-born · Cincinnati career

Robert S. Duncanson

1821–1872 · American landscape painter

Duncanson made Cincinnati a central base for his career and became internationally known for idealized landscapes. He was one of the most acclaimed African American painters of the nineteenth century.

Signature study
Confirm spelling, placement, paint layer, and age against securely documented landscapes.
Featured work
Landscape with Rainbow, 1859
Smithsonian museum record →
Major names

International painters to know

High-value names deserve especially careful provenance research.

Spanish · 1881–1973

Pablo Picasso

Painter, sculptor, printmaker, ceramicist

Picasso’s long career moved through the Blue and Rose periods, the development of Cubism, neoclassicism, politically charged work, and prolific later experimentation across media.

Signature study
His signature and inscriptions changed across decades and media. A plausible “Picasso” is never enough without provenance and expert review.
Featured work
Les Demoiselles d’Avignon, 1907
Museum of Modern Art record →
French, born Belarus · 1887–1985

Marc Chagall

Painter and printmaker

Chagall blended memories of Vitebsk, Jewish cultural imagery, folklore, lovers, animals, and modernist color into a highly personal visual language that crossed painting, printmaking, stained glass, and theater design.

Signature study
Check date, medium, edition details, and provenance; prints require confirmation of the exact edition and impression.
Featured work
I and the Village, 1911
Museum of Modern Art record →
French · 1840–1926

Claude Monet

Founder of French Impressionism

Monet pursued the changing effects of light and atmosphere in landscapes, modern leisure scenes, and serial studies. At Giverny, his water-lily pond became the basis for increasingly immersive, nearly abstract late paintings.

Signature study
Compare with securely dated works; pigments, canvas, stretcher, and provenance must support the proposed date.
Featured work
Water Lilies, 1916–19
Metropolitan Museum record →
Dutch · 1853–1890

Vincent van Gogh

Post-Impressionist painter

Van Gogh developed an intensely colored, rhythmically brushed style during a short working life. His subjects ranged from Dutch peasant life and self-portraits to orchards, night scenes, wheatfields, and the celebrated Arles sunflowers.

Signature study
Many paintings are unsigned. Never reject or accept a work on the signature alone; consult provenance and the Van Gogh Museum’s research.
Featured work
Sunflowers, 1889
Van Gogh Museum record →
Closer look

Signature + artwork profiles

Expanded entries with visual references.

American Impressionist · 1844–1926

Mary Cassatt

Cassatt was an American painter and printmaker who built her career in France and exhibited with the Impressionists. Her work is especially admired for unsentimental, closely observed scenes of women and children, rigorous drawing, and Japanese-print-inspired composition.

Known forPainting, pastel, printmaking, intimate modern-life subjects
Market clueWorks exist in multiple media; technique, paper or canvas, provenance, and date matter as much as the signature.
Documented signature example
Documented Mary Cassatt signature example

Public-domain signature image via Wikimedia Commons. Compare letter formation, pressure, placement, and the surface beneath it—not just the overall shape.

The Child's Bath by Mary Cassatt
The Child’s Bath, 1893. Art Institute of Chicago. Public-domain image.
American landscape painter · 1825–1894

George Inness

Inness moved from detailed Hudson River School landscapes toward increasingly atmospheric, poetic scenes. His later paintings use softened edges, tonal color, and light to create mood rather than topographical precision.

Known forLandscape painting, tonal atmosphere, luminous late works
Market clueHis long career includes sharp early landscapes and much looser late pictures. A signature that looks plausible must still fit the period and handling.
Documented signature example
Documented George Inness signature example

Public-domain signature image via Wikimedia Commons. Inness signatures vary, so use this as one comparison point rather than a template.

The Lackawanna Valley by George Inness
The Lackawanna Valley, about 1856. National Gallery of Art, Washington. Public-domain image.
How this page is checked
  • Birthplaces, life dates, training, and Cincinnati connections are checked against the Cincinnati Art Museum, Smithsonian American Art Museum, National Gallery of Art, MoMA, The Met, Musée Picasso Paris, and Van Gogh Museum records linked above.
  • “Cincinnati-born” is reserved for artists whose museum record identifies Cincinnati as the birthplace. Nearby birthplaces and later Cincinnati careers are labeled separately.
  • Featured works link to museum collection records. Signature images shown in expanded profiles are public-domain reference files from Wikimedia Commons.