Marshall BioResources

Gilman Marshall establishes a ferret breeding operation in North Rose, Wayne County, New York.

Marshall begins breeding beagles for laboratory research. Same year as the thalidomide disaster, which drives global demand for preclinical animal testing.

Marshall grows into the dominant US beagle supplier as regulatory requirements for non-rodent testing increase. 'Marshall Beagle' becomes the de facto industry standard.

First of more than 20 documented AWA violations at the North Rose facility. Compiled by Rise for Animals from USDA APHIS records.

Repeated citations over nearly two decades. No enforcement action comparable to Envigo or Ridglan despite documented pattern of noncompliance.

Marshall operates breeding facilities and offices in at least 7 countries: US, UK (MBR Acres), France, China, Italy, Japan, and others.

Activists establish a continuous protest encampment outside MBR Acres in Cambridgeshire, UK — Marshall's British subsidiary. It becomes the longest-lasting animal rights protest camp in the UK.

Federal shutdown of Envigo (Cumberland, VA) after 70+ AWA violations. 4,000 beagles rescued. Marshall gains significant market share as a competitor exits.

Investigative reporting reveals 6,000+ beagles shipped via SAS passenger planes through Copenhagen Airport to 7 European countries. Route is disrupted after public exposure.

PETA documents conditions at Marshall and Liberty Research, a Marshall-linked facility. Published reports draw public attention to scale of operations.

Removes the 1938 animal testing mandate. Does not ban animal testing but opens the door to alternatives. Long-term threat to Marshall's business model.

Passes Senate unanimously. Further strengthens pathway for non-animal testing methods.

Ridglan Farms (Blue Mounds, WI) surrenders its USDA license in settlement. Marshall becomes the near-monopoly purpose-bred beagle supplier in the US.