Stephen T. Van Brocklin, 52, a retired Navy commander who taught physics at West Springfield High School in 1998-99, died of cancer Jan. 9 at Fairfax Hospital.

Cmdr. Van Brocklin retired from the Navy in 1991 after 22 years of military service as an aviator and program manager. While serving in the Navy, he received a master's degree in aeronautical science from the University of West Florida and a second master's degree in aeronautical engineering from the Naval Postgraduate School.

His career included three deployment cruises to the Mediterranean and duty in Grenada, California, Florida, Rhode Island and the Washington area, where he had lived for the last 14 years. His decorations included a Meritorious Service Medal.

After his military retirement, Cmdr. Van Brocklin was director of operations at AP Labs and then a division director at the Tech Plan Corp.

He joined the faculty at West Springfield High School as a physics teacher in 1998.

Cmdr. Van Brocklin, a resident of Burke, was born in Watertown, N.Y., and graduated from Clarkson University.

He was a member of the Knights of Columbus and the Catholic Church of the Nativity in Burke.

Survivors include his wife, Constance Van Brocklin of Burke; three children, Andrew S. Van Brocklin of Port Orange, Fla., Mark P. Van Brocklin of Charlottesville and Matthew S. Van Brocklin of Burke; his mother, Marilyn J. Van Brocklin of Port Orange, Fla.; and two brothers.