Frank Hawking's diaries reveal his deep concerns about his son Stephen Hawking during his early university years. In January 1961, he noted that Stephen, then 19 and studying at Oxford University, lacked initiative and spent too much time at home without studying. Despite these worries, Stephen later achieved remarkable success, earning a doctorate from Cambridge University by age 24 and making groundbreaking contributions to cosmology, particularly in black hole theories. The diaries, which were written in a coded Greek script for privacy, also reflect Frank's feelings of inadequacy compared to his son's advantages. They provide a poignant glimpse into the family dynamics and the emotional challenges they faced, especially as Stephen battled motor neurone disease, which he was diagnosed with at 21. Frank's writings reveal a father's love and concern, capturing both his pride in Stephen's achievements and the struggles they endured together.