Why does the main character in Indiana Jones go by the name Indiana when his nickname 'Indiana' includes the girls name Ana pronounced Anna?

The main character, Indiana Jones, is named after his childhood dog, which was named Indiana. The name does not have any connection to the girls' name "Ana," as it is simply a nickname derived from his home state. Additionally, the character's full name is Dr. Henry Walton Jones Jr., and "Indiana" serves as a distinct and memorable identity that fits his adventurous persona. The choice of the name adds to the character's rugged charm and reflects his adventurous spirit.