Franklin Simmons art links 

Fine Arts Museums of San Francisco
General William Tecumseh Sherman, ca.1866
Penelope, 1896

Franklin Simmons at the Metropolitan Museum of Art, New York City  
The Promised Land

Museum of Fine Arts, Boston  

Fleming Museum at the University of Vermont
Penelope, ca.1900

National Statuary Hall, Washington D.C.
William King

National Statuary Hall, Washington D.C.
Francis Harrison Pierpont

National Statuary Hall, Washington D.C.
Roger Williams

Portland Museum of Art, Maine

U.S. Senate Art Collection
Hannibal Hamlin

U.S. Senate Art Collection
Adlai E. Stevenson

U.S. Senate Art Collection
Charles W. Fairbanks

 
National Art Databases and Museum Inventories:

Smithsonian Institution Art Inventories
List of works nationwide from two sources: the Inventory of American Paintings Executed before 1914 and the Inventory of American Sculpture (only a few percent of listings have an accompanying image)

 

Union List of Artist Names (Getty Museum)  
Reference sheet with basic information about the artist and pointers to other references.