Louise LaBlavier Henderson died on May 24 in Connecticut after a long illness. Ms. Henderson grew up in Darien.

She attended the Thomas School in Rowayton before attending Wellesley College, from which she graduated in 1955. Subsequently, she received a master’s degree in history from Stanford University.

Ms. Henderson was an educator. Believing in young people and their abilities and aspirations, Ms. Henderson inspired hundreds of girls at the Castilleja School in Palo Alto, Calif., the Chapin School in New York City and the Sunset Hill School in Kansas City, Mo. where she was headmistress for five years in the 1960’s, her family said.

As a teacher, she shared her passion for and knowledge of history for many years. She also was the college guidance counselor at the Chapin School for more than 25 years, helping many students think through the college application process.

Ms. Henderson was also a camping educator. Her mother’s family owned and directed Camp Arcadia in Casco, Maine.

Ms. Henderson was a camper at Camp Arcadia for many summers and became a counselor, Head Counselor and a Director with her sister, Anne Henderson Fritts.

Anne’s daughter, Louise Fritts Johnson, is currently a director, assisted by her sisters and brother.

Ms. Henderson was predeceased by her father and mother, Lucien and Juliette Henderson, and her sister, Margaret Floyd.

Ms. Henderson is survived by her sister and brother-in-law, Anne and Jack Fritts of New Vernon, N.J., their children and families, Katherine H. Fritts and Steven Cappel of Atlanta, Ga.