2012 Summer Olympics and Paralympics gold post boxes

Columns: Athlete | Event ( s ) | Town/City | Address
GB Cycling | Cycling - British Cycling HQ | Manchester | Piccadilly Gardens | Helen Glover | Rowing - Women 's coxless pair | Penzance | Quay Street , TR18 4BD | Katherine Grainger | Rowing - Women 's double sculls | Aberdeen | Castle Street | Alex Gregory | Rowing - Men 's coxless four | Cheltenham | High Street | Henley-on-Thames Rowers | Rowing - Leander Club | Henley-on-Thames | Hart Street | Carl Hester | Equestrian - Team dressage | Sark , Guernsey | The Avenue

Example questions:
Between 2012 Summer Olympians Nicola Adams and Tim Baillie what is the date of the earlier birthday ? | Between 2012 Summer Olympians Tim Baillie and Alistair Brownlee what is the date of the earlier birthday ? | Between 2012 Summer Olympians Tim Baillie and Ben Ainslie what is the date of the later birthday ? | Between 2012 Summer Olympians Tim Baillie and Scott Brash what is the date of the earlier birthday ? | Between 2012 Summer Olympians Tim Baillie and Steven Burke what is the date of the earlier birthday ?

Answers:
11 May 1979 | 11 May 1979 | 11 May 1979 | 11 May 1979 | 11 May 1979