Complex sentence: James Cullen Landis was the middle of three siblings (two sons and a daughter) raised by Lulan and Margaret (née Cullen) Landis in Nashville, Tennessee, US World War One Draft Registratin where his father supported his family as a stock broker.
Split into simpler sentences: James Cullen Landis was the middle of two sons and a daughter raised by Lulan and Margaret (née Cullen) Landis. He was born and raised in Nashville, Tennessee, US World War One Draft Registratin where his father supported his family as a stock broker.