| 1958 | The Hard Blue Sky. Grau's first novel depicts the lives of descendants of Louisiana's French-Spanish pioneers, who inhabit a coastal island in the mouth of the Mississippi. It helps establish the New Orleans-born writer as an anthropologist, via fiction, of the American South. |
| 1961 | The House on Coliseum Street. Grau's second novel is set in the author's native New Orleans and concerns the impact of an abortion and a failed loved affair on a young woman. |
| 1964 | The Keepers of the House. In a Pulitzer Prize-winning novel about Southern racism and miscegenation, Grau chronicles three generations of the Howland family, prompting comparisons with Faulkner. |
