Please answer the following question: Facts:   - death place: los angeles , california    - art: y    - write: y    - birth name: robert p. gregory    - subcat: american    - death date: 5 december 2003      - birth date: 20 october 1921    - name: bob gregory    - nationality: american    - birth place: los angeles , california   Based on these bullet points, write a short biography describing the life of bob gregory -lrb- comics -rrb- .
A:
robert p. gregory -lrb- october 20 , 1921 -- december 5 , 2003 -rrb- was an american comics artist and writer best known for writing and/or drawing hundreds of gold key comics starring the walt disney pictures character donald duck .