Gerrit Van GelderenGerrit Van Gelderen.

Gerrit van Gelderen (1926 to 1994) was a Dutch-born naturalist, wildlife broadcaster, film-maker, illustrator, and cartoonist, who lived and worked in Ireland for a large part of his life. He is famous for his television work on Amuigh Faoin Spéir (Irish: "Out Under the Sky") with Éamon de Buitléar. and his series To the Waters and the Wild that ran from 1974 until 1994.