Crummy completed an undergraduate degree at
Keele University and works as an independent archaeological finds specialist. She was formerly Archaeological Archive Manager at the
Museum of London, where she helped develop the Museum's standards for the deposition of archaeological finds. She consolidated the Museum of London's archaeological archive collection, based at Lever Street, the precursor to the London Archaeological Archive & Research Centre (LAARC). She has had a long-standing relationship with the University of Reading, as a visiting research fellow to the Department of Archaeology and as a small finds consultant on the Silchester Town Life Project. She has previously been elected as a fellow to the
Society of Antiquaries of London. She has written numerous archaeological reports and publications on the subject of small finds, ranging from site assemblages to individual artefacts. She is notable for her work on the small finds from Roman
Colchester (
Camulodunum) and Roman
Silchester (
Calleva Atrebatum). Major contributions to artefact studies include those on Roman toilet instruments and the manufacture of Roman bone artefacts. Her book,
The Roman Small Finds from Excavations in Colchester 1971-9, has been described as the 'bible of the Roman finds world in Britain' by archaeologist and finds specialist Hillary Cool. == Crummy's Functional Categories for Small Finds ==