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About us

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Urso Chappell

Urso Chappell founded ExpoMuseum 1998, with the ultimate dream of seeing ExpoMuseum become a physical museum dedicated to the history of all world expositions - in much the same spirit as the Olympic Museum in Lausanne, Switzerland.

Ever since attending his first world's fair in 1982, Urso was fascinated by nearly every aspect of them. He continued to be inspired by the potential of future expos and their enormous capacity to educate and inspire the public to see beyond everyday life. Combining his interest in design, architecture, culture, history, internationalism and communication, the potential of world's fairs became a passion for Urso which eventually led to the creation of ExpoMuseum, the preeminent online world's fair source. Over the years, he attended eleven international expositions, wrote for various publications, consulted on Expo bids, and worked with Milan's Expo 2015 to create the Expo 2015+100 Archive.


Sadly, in December 2020, Urso Chappell passed away. A group of friends and colleagues took over ExpoMuseum to keep his legacy alive. 

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César Corona


César Corona is a specialist on public diplomacy and World Expos.

He has worked at Expos 1998 Lisbon, 2000 Hannover, 2010 Shanghai, 2012 Yeosu, and 2015 Milan, for the National Section of Mexico, the University of Southern California (USC), and the Bureau International des Expositions (BIE). He attended Expo 2020 Dubai representing

He holds a BA in International Relations (UNAM) and a MA in Public Diplomacy (USC).

His hobbies include photography, drumming, and languages.

He resides in Los Angeles, USA.

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Jason Griffing
Deputy Director


Jason Griffing has been a long time Expo fan. His first Expo experience was attending the Knoxville 1982 World’s Fair.


He has researched and attended 15 World Expos since 1982, the latest being Expo 2020 Dubai. 

His main interests in Expos include the architecture and visiting past Expo sites. 

He maintains a collection of memorabilia from all the World’s Fairs he has attended as well as some from others. Aside from Expos his interests include travel, photography and eating ice cream almost every day.


He resides in Connecticut, USA 

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Christine J Hsieh


Christine Hsieh is a World Expo enthusiast. She first learned about World Expos when she was visiting her family and saw Shanghai getting ready for their Expo.

Over the next few years, she received multiple research grants from her university to attend both Expo 2010 Shanghai and Expo 2012 Yeosu. Most recently, she attended Milan Expo 2015. She loves to travel and even when she's visiting other cities, one of the first things she looks for is traces of past World's Fairs.

Aside from World Expos, she also loves coffee, cooking (plant-based), and photography.

She resides in New York, USA.

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Jean Huard
French Editor

Jean Huard has been a fan of universal exhibitions since Montreal in 1967. At the age of 13, he had visited Expo’67 about twenty times. Over the years, he has developed a passion for this event, constantly acquiring elements and photos to expand his personal collection.

During his professional career, he was a journalist and radio host as well as administrator of an outdoor tourism site in his region of Mauricie, Quebec. 

He is also a great sports fan and a proud supporter of the Shawinigan junior team (hockey) and semi-professional baseball club in Trois-Rivières. He is also a genealogist and like maintain a vegetable garden at home during summer.

He resides in the Shawinigan and Trois-Rivières region, Canada

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Laurent A. LeMog


Graphic arts designer for more than 30 years, Laurent Antoine LeMog has specialized since 2005 in the World Expo history field.

He uses his vast World Expo collection to create 3D reconstruction projects, historical research and write articles in the Expo domain.

He works mainly for renowned institutions, museums, but also in the context of future Expo bids, with organizations, or pavilions of participating nations.

He resides in France

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