Portraits From the March for Our Lives in Washington

Hundreds of thousands marched on Washington on Saturday demanding legislative action on guns and school safety in the wake of the Feb. 14 massacre at Marjory Stoneman Douglas High School in Parkland, Florida. Concurrent marches were held in more than 800 cities around the U.S. and the world, including New York, Paris, and London. Justin T. Gellerson photographed — on instant film — the kids leading the charge in this pivotal cultural moment.

(Corrects caption in eighth photograph.)