who was the first president of Delaware university?

Answer 1

Patrick Alison. The college was originally known as Francis Alison's Academy.

Answer 2

While the Reverand Alison founded the school that later became the University of Delaware, Eliphalet Wheeler Gilbert was the first president of the school when it became a college (originally called Newark College, he was the president when it became Delaware College).

The link below gives the full history.