Jean Labeau was a male Human citizen of France on Earth in the 20th century.
He became the foreign minister of his country on February 9, 1930, serving simultaneously as vice premier. A New York City newspaper article reported that the US Ambassador to France met Labeau for the first time since he became foreign minister. The report was on the same page as a murder, and the death of the "local social worker" Edith Keeler.
This was one of the images Spock's tricorder recorded before he and Captain Kirk transported back in time. (TOS: "The City on the Edge of Forever")
This character was only mentioned in writing.
The information about Jean Labeau was seen in a newspaper article on Spock's tricorder screen. The abrreviation Adm. might indicate his military rank of admiral.
Labeau was a fictional character. In reality, Aristide Briand was foreign minister of France in 1930.