Jack Roberts was born in Sussex, England, in 1948 and has lived in Ireland since 1974. After becoming involved with astro-archaeological research in the Boyne Valley between 1978 and 1982, he began field research in the west Cork region. He has published a number of guides to the area and has been researching the sheela-na-gigs since 1995.
Joanne McMahon was born in Adelaide, Australia, in 1973. She began research into sheela-na-gigs in Bath, England, in 1994–5 and was UK researcher for The Sheela-na-Gigs of Britain & Ireland (1995).