“His uncle, Dick Grayson”

This panel from Batman, #159, drawn by Sheldon Moldoff for Bob Kane, suggests how Alfred saw the relationship between Bruce Wayne and Dick Grayson—and thus how scripter Bill Finger (credited with this story in the Grand Comics Database) saw it shortly before the arrival of the “New Look.”

This is one of the “imaginary stories” featuring a putative son of Bruce Wayne and Kathy (Batwoman) Kane, as pictured by Alfred. The story refers to Dick Grayson as Bruce’s “ward.” But it also matter-of-factly refers to him twice as “uncle” of redheaded Bruce Wayne, Jr.

Thus, Dick wasn’t an older brother to Bruce’s son, as a later generation of scripters would portray his relationship to Jason Todd, Tim Drake, and Damian Wayne. Instead, he was a younger brother to Bruce himself.