Question: Facts:   - teama: england    - pointsb: 3    - source: -lsb- http://www.rugbyleagueproject.org/players/all.html rugbyleagueproject.org -rsb- -lsb- http://www.englandrl.co.uk englandrl.co.uk -rsb-    - points: 96    - goalsb: 0      - birth date: july 10 , 1920    - fieldgoals: 0    - pointsa: 6    - teamb: great britain    - appearances: 126    - triesa: 2    - fieldgoalsb: 0    - tries: 26    - death date: 1997    - new: yes    - retired: yes    - triesb: 1    - name: leonard aston    - birth place: prescot district , england    - position: ce pr sr , lf-lk    - appearancesa: 3    - appearancesb: 3    - updated: 12 june 2012    - fullname: leonard aston    - goalsa: 0    - yearbstart: 1947    - yearastart: 1947    - yearend: 50    - yearstart: 1939    - nickname: len    - yearaend: 48    - fieldgoalsa: 0    - club: st. helens    - goals: 9   Based on these bullet points, write a short biography describing the life of len aston .
Answer:
leonard `` len '' aston -lrb- july 10 , 1920 in prescot district - 1997 -rrb- is an english professional rugby league footballer of the 1930s , 40s and '50s playing at representative level for great britain , and england , and at club level for st. helens , as a , or , i.e. number 3 or 4 , 8 or 10 , 11 or 12 , or 13 during the era of contested scrums .