After retiring as a player Walsh owned a sports shop / general store in Droitwich and later ran holiday homes in Thurlestone and Kingsbridge in Devon.

[3] Walsh began his career playing youth football in Waterford before joining Limerick United in 1942 making his debut on 4 October scoring twice against St James's Gate F.C.

At the end of a very successful goalscoring 1942–43 League of Ireland season he was loaned to Shelbourne for their Dublin and Belfast Inter-City Cup ties.

[5] On 8 June 1947, together with Jackie Vernon, Walsh returned to Ireland to play as a guest for Shamrock Rovers in a friendly against Everton.

In May 1946, Walsh joined West Bromwich Albion for a fee of £3,500 and subsequently made a terrific start to his English League career by scoring in each of his first six games.

He continued to score regularly for WBA and, together with Reg Ryan and Jackie Vernon, he was a key figure when they gained promotion in 1949.

Together with Johnny Carey, Con Martin, Bill Gorman, Tommy Eglington, Alex Stevenson and Peter Farrell, he was one of seven players born in the Irish Free State to play for the IFA XI that day.

Walsh also helped the IFA XI gain some further respectable results, including a 2–0 win against Scotland on 4 October 1947 and a 2–2 draw with England at Goodison Park on 5 November 1947.

Walsh, together with Con Martin, Reg Ryan and Tom Aherne, was one of four players from the Republic, included in the IFA XI that day and as a result he played for two different associations in the same FIFA World Cup tournament.

[6][7][8][9] Between 1946 and 1953, Walsh made 20 appearances and scored five goals for the FAI XI, making his debut for the team in a 3–1 defeat to Portugal on 16 June 1946.