Christina M. Kerzner, 43, of Plainview, formerly of Islip, passed away unexpectedly on Sept. 26, 2010. Mother of Aidan Devin Kerzner-Ryan, born Sept. 17, 2010, and partner of Devin Ryan. Daughter of Judy Van Derzee and Richard Kerzner Sr. Sister of Rich, Kathryn, Cindy, Deb and Barbara, and sister-in-law of Sue, Jerry and Dave. Aunt of Tia Nicole, Jason, Brittanie, Nick, Alex, Sarah and David. Longtime employee of McKinsey & Company, New York City, and treasured friend of many, both here and abroad. Arrangements were made by Arthur F. White Funeral Home. A remembrance service, along with Aidan’s baptism took place Oct. 3 at the funeral home. Cremation was private. Contributions in trust for Aidan Devin Kerzner-Ryan may be sent in care of Judy Van Derzee.