He then took on a post at the Lake Windemere Laboratory of the Freshwater Biological Association, back in Britain.
[2] During the Second World War he was attached to the Admiralty as a civilian scientist looking at wave behaviour, especially in reference to the English Channel.
In 1966 he became Distinguished Professor of Zoology at the University of Wisconsin-Milwaukee and founding Director of a newly formed Center for Great Lakes Studies.
[1] In 1995 he received the A.C. Redfield Lifetime Achievement Award for his "lasting and substantive contributions across disciplines of aquatic biology, chemistry and physics, his leadership, and his general commitment to excellence."
In 1935 he married German citizen Ingeborg Closs (Professor Max Hartmann’s niece) and they had two daughters: Christine and Alison.