Horatio Walker art links 

Horatio Walker at the Metropolitan Museum of Art, New York City
2 works by Horatio Walker online

National Gallery of Canada, Ottawa
13 works online

Art Gallery of Greater Victoria, British Columbia

Beaverbrook Art Gallery, New Brunswick

MacKenzie Art Gallery, Saskatchewan
Untitled Figure Study, ca.1900

Horatio Walker at the Smithsonian American Art Museum, Washington D.C.

Virtual Museum of Canada

Winnipeg Art Gallery, Manitoba   NEW!

 
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)

 

Grove Dictionary of Art Online (excerpt)  

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

The Canadian Encyclopedia  
Illustrated biographical entry