Rennard majored in independent studies at Princeton University and a master's degree in English from Middlebury College. She later turned to photography, studying with Eugene Richards, Joyce Tenneson, Shelby Lee Adams, and others.
In 2009, the unpublished book, The Downs at Albuquerque, was nominated for a New York Photo book award. Photos and an article about the series will appear in the February 2010 edition of Black and White Magazine.
Rennard teaches at the Groton School, in Groton, MA.