Complex sentence: William Clouser Boyd (March 4,1903-February 19,1983) was an American immunochemist, who with his wife Lyle, during the 1930s, made a worldwide survey of the distribution of blood types.
Split into simpler sentences: William Clouser Boyd (March 4,1903-February 19,1983) was an American immunochemist. In the 1930s, with his wife Lyle, he made a worldwide survey of the distribution of blood types.