Bertus Mooi Wilten
Sjoerd Lambertus "Bertus" Mooi Wilten was a Dutch swimmer. He joined the swimming club HPC in Heemstede. In 1934-35 he broke the Dutch national record on the 100 m freestyle twice for the long course and four times for the short course, reaching 1:00.6 in February 1935.
He competed in the men's 100 metre freestyle at the 1936 Summer Olympics, but was eliminated in the second heat.
