Heat and humidity are not kind to historic photos and documents. Karen Keehr, photography curator for History Nebraska, spoke to the 2019 Nebraska Country Schools Association conference attendees on Friday, July 19, about how to conserve old photos and documents. Keehr said the ideal archive environment for photos and documents is about 65 degrees Fahrenheit with about 40 percent relative humidity. Photos exposed to higher humidity levels are prone to fading and fungus, said Keehr, while those kept in low-hummidity conditions may become brittle...
