Complex sentence: John William Warner was born on February 18,1927, to John W. and Martha Budd Warner and grew up in Washington, D.C., where he attended the elite St. Albans School before graduating from Woodrow Wilson High School in February 1945.
Split into simpler sentences: John William Warner was born on February 18,1927 in Washington, D.C., to John W. and Martha Budd Warner. He grew up in Washington, where he attended the elite St. Albans School before graduating from Woodrow Wilson High School in February 1945.