Football quiz question, anyone got some decent ones. I'll start

Easy one as you'll have all probably heard it before... Only player to score a hattrick in all four leagues, FA cup, league cup, and internationally?
Robert Earnshaw, I thought he was the answer to a previous question asked, I was wrong mind
Who was the 1st loanee to score a 1st team goal for the Boro?

How far back are we going, because there used to be all sorts of 'guest' players under fake names in the 1890's/1900's and a lot of swapping during the wars?