According to the search results, Johnny Leahy's brothers who won All-Ireland medals with Tipperary in 1916 and 1925 are Paddy, Mick, and Tommy Leahy. They all played inter-county hurling at various times.
Here's a quote from Johnny Leahy's Wikipedia page: "Leahy came from a sporting family, and his brothers Paddy, Mick, and Tommy all played inter-county hurling at various times." [1]
Additionally, I found an article from Tipperary Live that mentions the Johnny Leahy Cup, which was presented to the West Tipperary GAA Board in honor of Johnny Leahy. The article states that Kevin Leahy, a relative of Johnny Leahy, presented the new cup to the board. [2]
Here's an image of the Tipperary team that won the All-Ireland Senior Hurling Championship in 1916, which includes Johnny Leahy:
References:
[1] https://en.wikipedia.org/wiki/Johnny_Leahy [2] https://www.tipperarylive.ie/news/sport/1539297/new-cup-presented-to-west-tipperary-gaa-board-in-honour-of-a-great-gael.html
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