John D. Hamaker was born in 1914.
John D. Hamaker died in 1994.
Hugo Christiaan Hamaker was born in 1905.
John D. Hamaker has written: 'The survival of civilization depends upon our solving three problems--carbon dioxide, investment money, and population' -- subject(s): Effect of human beings on, Food supply, Glaciers, Nature, Soil degradation
John Irvin Hamaker has written: 'The composition of beach sand with special reference to its organic component' -- subject(s): Sand
Hugo Christiaan Hamaker died in 1993.
J. I. Hamaker has written: 'The principles of biology' -- subject(s): Biology
Rex G. Hamaker has written: 'The computer and small business' -- subject(s): Management
John D. Clark was born on 1907-08-15.
John D. Finnegan was born in 1949.
John D. Payne was born in 1950.
John D. Batten was born in 1860.
John D. Trasvina was born in 1954.