Facts:   - birth name: george robert marshman    - death cause: injuries from racing accident      - birth date: 24 september 1936    - name: bobby marshman    - death place: san antonio , texas , u.s.    - birth place: pottstown , pennsylvania , u.s.   Based on these bullet points, write a short biography describing the life of bobby marshman .
The answer to this question is:
george robert marshman -lrb- september 24 , 1936 - december 3 , 1964 -rrb- , was an american racecar driver .born the son of auto race promoter george marshman in pottstown , pennsylvania , marshman died in san antonio , texas of injuries sustained in a tire test in phoenix , arizona .he drove in the usac championship car series , racing in the 1961-1964 seasons , with 49 career starts , including each indianapolis 500 contest in that span .he finished in the top ten 25 times , with one victory , in 1962 at the arizona state fairgrounds in phoenix .his 7th place finish at the 1961 indianapolis 500 earned him co-rookie of the year honors with parnelli jones .marshman may be best known for his performance during the 1964 indianapolis 500 .early in the race , following a fiery crash that clained the lives of eddie sachs and dave macdonald , marshman took the lead from polesitter and race favorite jim clark .marshman , driving a lotus 29-ford , extended his lead until the 37th lap , when he was forced off the track to avoid hitting a slower car driven by johnny white .the instant he spent off the track tore loose oil and water lines , and retired the car .many observers felt marshman was on his way to a comfortable victory before luck intervened .a story from the time holds that marshman wandered the crowd for an hour before returning to the pits and his crew .marshman , dressed in his fireproof overalls and with oily goggle-marks around his eyes , was holding a race program .jack beckley , marshman 's crew chief , studied him quizzically and finally asked , `` what are you doing with that ? ''an embarrassed and crestfallen marshman replied , `` i thought if i bought it no one would know i was a driver and they would n't ask me silly questions . ''on november 27 , 1964 , marshman was conducting tire tests at the phoenix 1-mile paved oval .when his lotus-ford crashed into the west retaining wall and ruptured the fuel tank , he was not wearing fire-retardant clothing to protect him according to some...