Allison Williams

Allison Williams was Rachel Jensen's assistant during 1963's Shoreditch Incident. She appeared on site with Rachel Jensen, when a Dalek killed a few soldiers. She witnessed the Doctor blow up the Dalek. She helped the Doctor defeat the Daleks. (DW: Remembrance of the Daleks)

According to one account, in 1986 Professor Allison Williams led the scientific team which investigated the Cyberman ship in Antarctica. (DWN: The Power of the Daleks)