Honolulu was a city in Hawaii on Earth.
After traveling back to 1930 through the Guardian of Forever to await the arrival of Leonard McCoy, James Kirk referred to Honolulu as one of the countless locations McCoy might arrive in. (TOS: "The City on the Edge of Forever")
In 2035, Kelleye N. Raymond, the daughter of Cheryl G. Raymond and Wil W. Lachance Raymond, was born in this city. (TNG-R: "The Neutral Zone", okudagram)
In 2050, Wade Felker Raymond was born in this city. (TNG-R: "The Neutral Zone", okudagram)
This information came from the remastered Clare Raymond family tree.
While he was an ensign, Jack Ransom's commanding officer was from Honolulu. (LD: "wej Duj")