CHESTERTOWN A Chestertown woman has been named interim executive director of Big Brothers Big Sisters of the Southern Adirondacks, as that organization says goodbye to its current executive director. June Leary has been executive director of the local chapter since 2003, helping the organization grow to the point where it matches over 200 children with big brothers and big sisters. Chestertown resident Deborah Zack has been named interim executive director. The chapter asks that volunteers and supporters attend the Bowl for Kids Sake at Spare Time Bowling Alley in South Glens Falls this Sunday, March 25, and on April 1. The event features food, prizes and music as well as bowling. For more information, see bigbrothersbigsistersglensfalls.org.