For 25 years, Diane Kischell has cared for the children of dozens of Wesleyan employees and Middletown community members. This month, Kischell, director and head teacher at the Wesleyan-affiliated Neighborhood Preschool (NPS), is retiring. She started at NPS in 1983. "Diane's teaching, mentorship and commitment have guided the Neighborhood Preschool, fostering a school where children can be themselves and where they develop a firm foundation of self-esteem and communication skills that sustain them as they grow," says Suzanna Tamminen, director of Wesleyan University Press and mother of Hugh Barrett NPS '07, Fiona Barrett NPS '08 and Silas Barrett NPS '12.…