Gennifer, (the author of Al Capone Does My Shirts) was born on 1957 in Santa Monica, which is in California. She is a Newbery Honor-winning American writer of famous books for children and adults. Gennifer is the youngest of four siblings: two sisters and one brother. Gennifer`s sister, Gina, is autistic. ( Which is shown through character Natalie in Al Capone Does My Shirts.) When she got older, she married Jacob and had two children. The son`s name is Ian who is age 15, and a daughter named Kai, who is age 10. She currently lives in the San Francisco bay area.