Ack van Rooyen
Ack van Rooyen (1 January 1930 – 18 November 2021) was a Dutch jazz trumpeter and flugelhornist. He was Jerry van Rooyen's brother. He played with The Ramblers between 1955 and 1957, then moved to France in 1957. There, he worked with Aime Barelli, Kenny Clarke, Lucky Thompson, and Barney Wilen.