Children Walk on Chairs to Cross a Flooded Schoolyard - Patrick Rosal
The 8th of May: A Vow Made for the 7th of May - Daniel Nathan Terry
Old Photographs - Gabeda Baderoon
...or like these which respond to the same famous photograph...
War Photograph - Kate Daniels
The Uncropped Photograph--Nick Ut's Vietnam, June 8, 1972 - Gary Dop
...browse your favorite archive for an image to use as a spark.
Perhaps an image in one of these online archives might intrigue you:
American Memory: Photograph Collections - LoC
Calisphere - U of California
LIFE Photo Archive - Google
National Archives Photo Collections
National Museum of African American History and Culture
New York Digital Library: Photography Collections - NYPL
Virginia Memory - LVA
And if that makes you hungry for more art to engage with, check out Rattle's monthly ekphrastic challenge.