Barr received a BA in Art History from Tufts University and a BFA from the School of the Museum of Fine Arts, Boston. She also attended Tyler School of Art in Rome, Italy. 

In additional to painting and drawing, Laura has worked as a graphic designer, most recently as principal of Barr Design, Graphic Communications. She is a member of the New Haven Paint & Clay Club and an elected member of Connecticut Women Artists. She chairs the Art Committee for the Keyes Gallery, Willoughby Wallace Memorial Library, Stony Creek, CT. Her work has been shown in galleries in the Northeast and is in many private collections.