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Administration

Delcastle Administration Team
Delcastle Principal Mr. John Greenly
Mr. John Greenly, M.Ed. | Principal
Delcastle Assistant Principal Mrs. Carrie Barber
Carrie Barber, M.Ed. | Assistant Principal
Delcastle Assistant Principal Ms. Celeste Sosa
Celeste Sosa, M.Ed. | Assistant Principal
Delcastle Assistant Principal Mr. Timothy Dorsey
Timothy Dorsey, M.Ed. | Assistant Principal
Delcastle Assistant Principal Dr. Chad Harrison
Dr. Chad Harrison | Assistant Principal

News & Announcements

Serving with Purpose: Delcastle Student Leaders Expand Community Impact for the 2025 National Day of Service

Building on last year's success, multiple student leadership groups spread out across New Castle County to engage, assist, and give back.

Delcastle Goes National: Representing Delaware at NCSA

Our Student Leadership team returns from Grand Rapids, Michigan, equipped with national-level strategies to empower our students and transform our school culture.

Life at the ’Castle: December 2025 Events and Activities

A month filled with learning, celebration, performances, and school-wide traditions as we close out the year at the ’Castle.

Delcastle Drama Club Presents: “Almost, Maine” | Two Nights Only – December 12 & 13 at 7:00 p.m.

Nine Stories. Two Nights. One Unforgettable Show.

Delcastle Digital Media Program Featured in Delaware Business Times

Article highlights Delcastle’s career-focused media program and the real-world opportunities preparing students for the fast-growing digital arts industry.

SkillsUSA Delcastle Hosts First-Ever Day of Thanks to Celebrate Shop Representatives

SkillsUSA Delcastle Chapter's Executive Board students lead a heartfelt celebration recognizing the shop representatives who support SkillsUSA all year long.

Delcastle Key Club Serves Local Firefighters with Homemade Dinner and Gratitude

Key Club leaders visit Belvedere Fire Hall to share a homemade meal, thank-you letters, and appreciation for first responders.

Delcastle Student Leaders Gain New Perspective at 2025 SYLP Leadership Conference

Students explore self-awareness, collaboration, and future planning at UD’s nationally recognized program