Complex sentence: He spent most of his boyhood on a farm and earned his schooling; graduated at Miami University in 1852; studied theology at Lane Seminary; and was principal of the preparatory school at Miami in 1853-1866.
Split into simpler sentences: He spent most of his boyhood on a farm and earned his schooling. Swing studied theology at Lane Seminary; and was principal of the preparatory school at Miami in 1853-1866.