who attended gatsby's funeral? how and why is this signifcant?

Gatsby's funeral service is described in Chapter IX.The only people who come to Gatsby's funeral are Nick, the minister, Henry Gatz (Gatsby's father), four or five servants, the West Egg postman, and Owl Eyes (the man who attended one of Gatsby's parties).

Gatsby's business partner, Wolfsheim, did not come because he was a gangster and did not want to be publicly linked with Gatsby. Tom and Daisy did not come because they had left town to avoid any investigation into Myrtle Wilson's death and Gatsby's death. (Remember, it was Daisy who drove the car that killed Myrtle.) The hundreds of people who came to Gatsby's parties did not come because they had no relationship with Gatsby; they only came to his house to eat his food, drink his liquor, and have a good time. They used him, in other words.