louisiana joined the union on april 30, 1812.
louisiana joined the union on april 30, 1812.
when did louisiana join the union?
april 30, 1812
Na
Na
roger m. spanswick









































roger morgan spanswick (june 24, 1939 – february 12, 2014) was a professor of biological and environmental engineering at cornell university and an important figure in the history of plant membrane biology.









































section::::personal life.









































roger morgan spanswick was born on june 24, 1939 in barford st. john and st. michael, oxfordshire, england. he was the son of lucy and arthur spanswick. roger married helen walker in 1963. andrew spanswick and robert spanswick are their sons. roger died at his hillside home overlooking cayuga lake on february 12, 2014.









































section::::university life.
roger m. spanswick