Born in 1938, Dr. Jack Cockrill began a lifelong commitment to education by earning a Bachelor of Science at Southeastern Oklahoma State University in 1961.  He received a Master of Education from Southeastern Oklahoma State University in 1965 and went on to pursue a program in administrative services at the University of North Texas.  He received his Doctorate of Education from Texas A&M University at Commerce in 1982.

Dr. Cockrill began his teaching career in Plano ISD in 1963 where he served as a teacher, coach, and later as a principal.  He went on to become the Plano ISD Assistant Superintendent for Personnel.  In 1978, he became the Superintendent of Schools for Gilmer ISD.  After six years of service he was named the Superintendent of Schools for Kerville ISD.   In 1988, he became the Superintendent of Schools for McKinney ISD where he served from 1988 to 1999.

Dr. Cockrill received numerous commendations during his career in Texas public schools.  In 1992, he was named Region 10 Superintendent of the Year and a finalist for Texas Superintendent of the Year.  He was honored with the Outstanding McKinney Citizen of the Year award in 1994.  He has also been actively involved in each of the communities in which he has lived, including serving in the McKinney Rotary Club, McKinney Chamber of Commerce, and the First United Methodist Church of McKinney.  He and his wife, Nancy, celebrated 50 years of marriage in 2007.  They are the proud parents of four children and they have eight grandchildren. Dr. Cockrill has consulted with the EFG staff for several years, and his professionalism and expertise continues to be vital components to the company.