Karin H. O’Neil, age 76 of Columbus, OH, passed away at her residence, Friendship Village Columbus, on April 25, 2018. She was born on January 2, 1942 to Dr. Charles E. and Roberta W. Holzer in Cincinnati, OH. Karin grew up in Gallipolis, OH, graduated from Stuart Hall School in Virginia in 1960, earned a Bachelor’s Degree in Religion from Mount Holyoke College in 1964 in Massachusetts, received her Masters Degree in History from the University of Massachusetts in 1967 and her CAGS in Education from University of Massachusetts in 1969. After her schooling Karin became a 5th grade public school teacher in the Palmer Schools in Massachusetts. From 1967 to 1971 she taught at Northampton Schools for Girls as a history teacher and a dorm parent, then went to Williston Northampton School and taught history. She became the department head in history and was made co-director of the middle school. She was appointed Academic Dean of the Upper School and went on to become Associate Head of School. She retired from Williston Northampton School in 2001 to move to Ohio to become the Executive Director of the Ohio Association of Independent Schools from which she retired in 2011. Prior to retiring she conducted many national workshops and trainings for the National Association of Independent Schools and was an Independent Educational Consultant. She was an active member of the League of Women Voters for over 50 years and involved in various choral groups and supported the arts throughout her life. Along with her mother, Karin is survived by her loving husband of 53 years Dennis O’Neil, son David A O’Neil ’83, grandchildren Erin and Ryan and their mother Carol Lynne O’Neil, siblings Dr. Charles E. (Jean) Holzer, III, John W. (Ann) Holzer, Christiana H. Gallant, Amy H. (Dudley) Irvin ’78, many beloved nieces, nephews, friends and colleagues. Along with her father, she is preceded in death by nephew Nathan H. Gallant.