Mary Anna Evans holds a bachelor's degree in engineering physics and a master's degree in engineering physics. She has been licensed as a Professional Engineer since 1993. Her experience as an environmental consultant includes contamination assessments, remedial investigations, remedial design work, and environmental audits in more than 17 states. Her first novel, Artifacts, was published in 2003, followed by Relics, Effigies, and Findings. They have received a number of rewards and recognitions and, though they are written as entertainment for adults, they have found an unexpected home in schools, where they are read to illustrate the ways that math and science work in the real world.
Kelly Bergdoll is president of KB Mobile Laboratories, a woman-owned small business specializing in field analytical chemistry, including NELAC certified mobile laboratories and direct sensing technologies such as the membrane interface probe and cone penetrometer. She was vice president of PPB Environmental Laboratories from 1985 to 2001 and founded KB Labs in 1998. Prior to that she was senior trace metals analyst at Environmental Science and Engineering and performed histology at the University of Florida Neuroscience laboratory. She has over 30 years of analytical experience and has an A.S. in Industrial Electronics.