Mr. Gatz is Henry C. Gatz, Jay Gatsby’s father. We meet Gatsby’s father in chapter nine of the book, before Gatsby’s funeral. It is interesting that the last name of Gatsby’s father is different from Gatsby’s. This is further proof of the façade Gatsby lived his life behind in order to fit into the social class of the fashionable East Egg. Gatsby wore the face of wealth. His father, Mr. Gatz, was a startling contrast. Mr. Gatz was a “solemn old man very helpless and dismayed, bundled up in a long cheap ulster against the warm September day” (p. 175).