Prior to founding Ephemera Press, Marc H. Miller worked as a museum consultant, writer, curator and educator. He was project director for Louis Armstrong: A Cultural Legacy, an exhibition and catalogue supported by the National Endowment for the Humanities, which traveled to the National Portrait Gallery in Washington DC, the New Orleans Museum of Art and other venues. Miller's publications include: Lafayette, Hero of Two Worlds: The Pageantry of His 1824 Farewell Tour of America, Remembering the Future: The 1964 World's Fair, and Television's Impact on Contemporary Art. Miller was a columnist for the East Village Eye, on the board of directors of the lower east side art gallery ABC No Rio, and an early principal in Art/New York, an educational videotape series on contemporary art. From 1985-1991 Miller was curator at the Queens Museum of Art. He has a Ph.D. in art history from NYU's Institute of Fine Arts. His website 98Bowery.com presents a personal chronicle of the art and music scene in New York from 1969-1989.

Millionaire is the illustrator of the Queens Jazz Trail Map, the Harlem Renaissance Map, and the History Map of Lower Manhattan. Versatile and prolific, Millionaire is equally adept at producing detailed sketches of architecture and caricatures. As an illustrator he has contributed to the Believer, Wall Street Journal, New Yorker and New York Magazine. Millionaire's syndicated comic strip "Maakies" runs in weekly newspapers across the country and has been collected into a book published by Fantagraphics. Animated versions of Millionaire's cartoons have been screened on Saturday Night Live and the Cartoon Network. His work has won five Eisner Awards, three Harvey Awards, and an Ignatz Award.

Romberger and Van Cook are the co-illustrators of the East Village Map. Romberger's pastels of East Village life have been shown at Tibor de Nagy Gallery, Grace Borgenicht Gallery, Gracie Mansion Gallery and are in the collection of the Metropolitan Museum. In 2011 Romberger collaborated with Jay Cantor on the graphic novel Aaron and Ahmed published by Vertigo DC Comics. Van Cook has worked as a musician (once opening for the Clash), a rock journalist, and was the executive director of the Howl! Festival. Her paintings have been exhibited extensively in both New York and London and her limited edition books are in the collection of the Museum of Modern Art. In the 1980s, Romberger and Van Cook ran the seminal East Village art gallery Ground Zero. In the 1990s they collaborated with artist David Wojnarowicz providing the illustrations for Seven Miles a Second, an acclaimed comic book autobiography written by Wojnarowicz shortly before his death from AIDS in 1992.

Avidor is the illustrator of Jewish New York: A History and Heritage Map commissioned by the New York Board of Rabbis. Avidor first attracted the attention of Ephemera Press in 2001 with a map she designed for a political campaign showing how Minneapolis would change if the Democratic candidate were elected mayor. Avidor has also made maps for the Bicycle Alliance of Minnesota and most recently a complex map of the city of St. Paul for the Saint Paul Almanac.

Hein is the art director for the Harlem, East Village, Lower Manhattan, and Jewish New York maps. After graduating from School of Visual Arts, Hein worked at Raw Magazine where he helped Art Spiegelman and Françoise Mouly produce the illustrated maps of Soho that initially helped finance the magazine. He has extensive credits as a freelance designer including an extended stay as the art director for a well-known weekly newspaper. Hein has long been a part of New York City's community of illustrators where he is respected for his knowledge of graphic design history as well as his expertise with new computer technology.

Michaelsen is editor of the website for Ephemera Press, as well as of the websites for 98 Bowery and Gallery 98. She is Professor of Art HIstory and Chair of the Art Market MA program at FIT (SUNY). She has been a guest curator at the National Gallery of Art in Washington, DC and the Neuberger Museum in Purchase, NY. Michaelsen has a PhD in art history from Columbia University. She is fluent in five languages.

Haoyan is the designer of the website for Ephemera Press, as well as of the websites for 98 Bowery and Gallery 98. A graduate from the School of the Art Institute of Chicago, he encourages creative Web explorations. Some of Haoyan's contributions online include: Facsimile Magazine, Light & Wire Gallery and The Glorious Internet.