Named after Isaac Barrow - British mathematician (1630-1677).
Barrow is an old lunar crater that is located near the northern limb. It lies. To the southwest is W. Bond. The outer wall has been heavily eroded by subsequent impacts, and reshaped by intruding craters. (wikipedia entry)
A crater is a circular depression likely created by an impact event. On the Moon they are named after deceased scientists, polar explorers, astronauts or cosmonauts.