Given the question: What type of details about alan horsfall can be gathered from the following bio? Bio: alan horsfall -lrb- birth unknown -- june 2007 -rrb- was a professional rugby league footballer of the 1940s and '50s , playing at club level for leeds , and castleford , as a , i.e. number 8 or 10 , during the era of contested scrums .
The answer is:
- appearances - position - yearend - updated - tries - death date - yearstart - new - points - retired - fullname - name - fieldgoals - club - goals