Four suggested sources:
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Here is a museum but not in the USA

This museum has a Francis turbine photo and info on its web site

Part of the site is in the German language but the turbine page is in English

Deutsches Museum – Masterpieces of Science and Technology

Museumsinsel 1
80538 München
Germany Tel.: (+49) 89 2179-1
Fax: (+49) 89 2179-324
Automatic information line: (+49) 89 2179-433
 
http://www.deutsches-museum.de/en/collections/machines/power-engines/water-turbines/francis-turbine/
 
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This place has a Jonval turbine
Fairmount Water Works Interpretive Center!

640 Waterworks Drive
Philadelphia Pennsylvania 19130


Delaware River Watershed Address: 02040202

Information & Reservations  Visitor Services, 215-685-0719
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This You Tube site has a video - how to make a model water turbine
http://www.youtube.com/watch?v=x8xow_R0YRI
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This site has a downloadable jpg diagram
 
Barbara Hass, retired Librarian
 
 
In a message dated 6/30/2009 5:18:03 P.M. Mountain Daylight Time, [log in to unmask] writes:
I am involved in the restoration and interpretation of two 19th c. water turbines at a mill site.  One is a Francis turbine the other is a Jonval. 
 
 
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