Ernie Wright

Ernie Wright was a London butcher.

While going home with Lil Nuttall, they were attacked by a Charrl that killed Lil. The Seventh Doctor was able to convince Constable Reggie Hawkins that Ernie was innocent of the murder. (PROSE: Birthright)

Behind the scenes
It is implied by the Doctor's comments that Ernie is the grandfather of either Barbara Wright or Polly Wright.