Robert MacPherson art links 

Art Institute of Chicago

Fine Arts Museums of San Francisco
The Ponte Nomentano over the Anio (Aniene), Rome
Roma #30, Porta Maggiore, ca.1860

J. Paul Getty Museum, Los Angeles
The Campagna near Rome, 1850

Musée d'Orsay Collection Database, Paris
14 works by Robert MacPherson online

Museum of Fine Arts, Boston  
Photograph collection online

National Galleries of Scotland, Edinburgh

Robert MacPherson at the National Gallery of Art, Washington D.C.
Biography available, but no works viewable online

San Francisco Museum of Modern Art  

Art Gallery of South Australia, Adelaide
Mayfair: Xmas (Wildfire red) for Mrs Pretty, 2001-02

Cleveland Museum of Art, Ohio

Courtauld Institute of Art, London, UK
43 works by or related to the artist

Harvard University Art Museums, Massachusetts

Robert MacPherson in the Los Angeles County Museum of Art Database

Museum of Contemporary Art, Sydney, Australia

National Gallery of Victoria, Australia

Snite Museum of Art at the University of Notre Dame, Indiana
The Falls Near Terni, 1858-60

 

5.000 Meisterwerke der Fotografie (in German)  

 

Answers.com reference works  
The "Art Encyclopedia" entry is from the Concise Grove Dictionary of Art (2002). The "Photography Encyclopedia" entry is from the The Oxford Companion to the Photograph (2005).

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