Kilkenny made it five successive provincial titles in-a-row in 1975. The 2–20 to 2–14 defeat of Wexford gave Henderson his eighth Leinster medal. On 7 September 1975, Henderson lined out in another All-Ireland final, with surprise semi-final winners Galway providing the opposition. Playing with the wind in the first half, Galway found themselves ahead by 0–9 to 1–3 at the interval. Eddie Keher's huge tally of 2–7 kept Galway at bay giving Kilkenny a 2–22 to 2–10 victory. It was a fifth All-Ireland medal for Henderson.
