Named after Julia Drusilla - famous Roman woman, second daughter of Germanicus and Agrippina, sister of Gaius (16-38).
A crater is a circular depression likely created by an impact event. On Vesta they are named after names historically associated with the Roman goddess Vesta (vestal virgins, people associated with vestal virgins) and famous Roman women.
Image Source. Marker locations are approximate and may not always appear to align with image on map.