More properly called by their genus name, Pelargonium.
An enclosed front porch in Chamisal, New Mexico, July 1940, by Russell Lee, via Library of Congress Prints and Photographs Division.
Lee and his wife, Jean, spent two weeks in Chamisal and Peñasco documenting the lives of the towns’ Hispanic small farmers and ranchers. Both communities are located along the High Road to Taos, which begins in Santa Fe and crosses the high desert and forest of the Sangre de Cristo Mountains.
The area was the setting for the 1974 book The Milagro Beanfield War — as well as the filming location for the 1988 movie of the same name. Milagro was the first of a trilogy of novels by John Nichols about north central New Mexico. The second and third books were set in the fictional town of Chamisaville.
enclos*ure 
When you have a plant that does well in your climate and always looks good, stick with it — and geraniums are an excellent choice. I do, however, think this photo would look great if it were hand-tinted with color. Beautiful!
The FSA photographers were beginning to use the fairly new (and expensive) Kodachrome film at this time. It’s too bad Lee didn’t use it in Chamisal — I haven’t found any color pictures anyway.
I’ve been trying to decide if the geraniums were white or pale pink.