Bobbie van de Graaf explained

Full Name:Robert van de Graaf
Birth Date:1944 3, df=y
Birth Place:Macclesfield, Great Britain
Height:1.89m (06.2feet)
Weight:82kg (181lb)
Sport:Rowing
Club:Laga, Delft
Show-Medals:yes

Robert "Bobbie" van de Graaf (born 17 March 1944) is a retired Dutch rower who won a bronze medal in the coxed fours at the 1964 Summer Olympics. His team mates were Marius Klumperbeek (cox), Lex Mullink, Freek van de Graaff and Jan van de Graaff. The latter two were also born in 1944 and are unrelated to Bobbie.