In 1978, Babcock and his wife, along with Linda Grosskopf, wrote a book: ''Challenges: Above & Beyond.''<ref>CHALLENGES Above and Beyond: Babcock, Tim; Babcock, Betty; Grosskopf, Linda: 9781607250692: Amazon.com: Books, accessed July 27, 2021.</ref> | In 1978, Babcock and his wife, along with Linda Grosskopf, wrote a book: ''Challenges: Above & Beyond.''<ref>CHALLENGES Above and Beyond: Babcock, Tim; Babcock, Betty; Grosskopf, Linda: 9781607250692: Amazon.com: Books, accessed July 27, 2021.</ref> |