Complex sentence: Toomer was born Nathan Eugene Pinchback Toomer in Washington, D.C. to Nathan Toomer, a Georgian planter, and Nina Pinchback, of mixed racial and ethnic descent (Dutch, French, Native American, African American, Welsh, German, Jewish).
Split into simpler sentences: Toomer was born Nathan Eugene Pinchback Toomer in Washington, D.C. to Nathan Toomer, a Georgian planter, and Nina Pinchback. He was of mixed racial decent (Dutch, French, Native American, African American, Welsh, German and Jewish).