David J. Hayes [SEP] educated at
laude" graduate of the University of Notre Dame. 
Career.
Prior to leading the State Impact Center, he was a Distinguished Visiting Lecturer at Law at Stanford Law School. As a Visiting Lecturer at Stanford, Hayes has developed and taught courses focused on renewable and conventional energy development and regulation, international wildlife trafficking, NEPA reform, and the Arctic. He has published several articles relating to this work.
From 2009 to July 2013, he was the Deputy Secretary and Chief Operating Officer of the Department of the
He married again in 1857 to Martha K. "Mattie" Hayes (b. about 1840). The 1860 census lists him as a prosperous merchant in Scott County, Kentucky. 
Descendants.
Following the war, his sons Thomas A. Poindexter (1867–1936) and Smith A. Poindexter (1868–1953) were born. Following his death on 14 April 1869, his daughter Mary E. Poindexter married on 12 September 1869 to Andrew J. Hayes (Sep 1846 - 22 Sep 1931), son of Samuel A. Hayes and Jane W. Cloyd.