Mary was 16 years old when she started her first job.
Mary King started horse riding when she was 22 in 1984 when she entered her first competition
he was 13 years old
He was 18 when he started his first job as a newspaper artist.
singing
I heard that Mary Njerera started singing just about the time she started talking when she was a baby.
As far as I know Mary-Kate and Ashley, It has been since full house , which was their first acting job, they started when they were practically 3 months old. So its Mary_kate AND aSHLY
Charles Dickens was 12 years old when he first started working at the Warren's blacking factory.
Yes, she started about 14 years old
She was 15.
5 years old
lebrons first dunk was when he was a sophmore
Mary Shelley was 20 years old when she wrote her first book, "Frankenstein".