Heather Marshall, Ph.D., was named Head of the Stowers Laboratory Animal Services Facility in 2005. In 2019, she was appointed the Director of Research Organisms at Stowers, which has oversight of all the research organism facilities that assist Stowers research endeavors. Marshall is a member of the American Association for Laboratory Animal Science and served for four years as Chair of the Institutional Animal Care and Use Committee at Stowers.

Marshall pursued her undergraduate studies at the University College of Wales, after which she worked as Research Assistant in the Department of Zoology at Oxford University. Later, after relocating to London, Marshall joined the MRC National Institute for Medical Research, working in the Division of Developmental Neurobiology then headed by Stowers Investigator and Scientific Director Emeritus Robb Krumlauf. It was there that she received her Ph.D. In 2000, Krumlauf asked Marshall to help establish his lab in Kansas City at the Stowers Institute.