Dr. James Darius Dillingham (1865-1939) was an educator and school administrator whose 40-year career included 34 years of service as the first principal of Newtown High School. He was a defender of co-education in secondary school, arguing that it played a crucial role in readying students for adult life. An innovator in the field of vocational training, Dillingham instituted the only course in agriculture in any New York City high school while at Newtown. In addition, he sponsored a four-year music course and established other courses in subjects like merchandising. Serving as principal until 1935, he retired from Newtown High School at the age of 70.

Dillingham was born in Berkley, Massachusetts, to Ajes D. and Lucinda I. (Harris) Dillingham. He attended Bristol Academy in Taunton, Massachusetts (now the Old Colony History Museum), and graduated from Amherst College in 1887. He was admitted to the Massachusetts bar, but preferring teaching to law, he continued his studies at the School of Pedagogy at New York University, graduating in 1892.

Dillingham began his teaching career in Toms River, New Jersey, and later taught in Jersey City. In 1894, he came to Queens, where he became the first principal of Corona High School. On August 7, 1901, he married Harriet Mahaffy of Salem, New York, a teacher and vice principal who also served two years as assistant principal at P.S. 16 in Corona.

In 1898, Corona High School merged with what was then Newtown Union School to form Newtown High School, and Dillingham took over as principal. He obtained significant support for the school during his tenure, with funds allocated for two major construction projects, one in 1920 for $1,250,000 and another expansion effort in 1932 for $900,000. Beginning with 60 students, the school was serving more than 8,000 students by the time Dillingham retired in 1935.

Dillingham and his wife lived at 41-47 Denman Street in Elmhurst, and she predeceased him in 1933. Active in civic affairs, he served as a director of Corona National Bank, a trustee of Elmhurst Presbyterian Church, and in several fraternal organizations including the Masons, Elks, and Odd Fellows. When Dillingham retired, he returned to live on the family homestead, a 200-acre farm in Berkley, where he was joined by his brother, John. On August 3, 1939, he died at the Rhode Island Hospital in Providence at the age of 73.

A marker commemorating Dillingham’s 34 years of service as principal stands at Newtown High School, located at 48-01 90th Street in Elmhurst.