Final answer:
Owl Eyes is the only former guest to come to Gatsby's funeral.
Step-by-step explanation:
The only former guest to come to Gatsby's funeral is Owl Eyes. In F. Scott Fitzgerald's novel, 'The Great Gatsby,' Owl Eyes is a character who attends one of Gatsby's parties and later visits his funeral. Owl Eyes is significant because he represents the few people who genuinely care about Gatsby and recognize his greatness.