Two Alvarado High School students and a former Alvarado ISD teacher died over the holiday weekend in unrelated traffic accidents.

“The Alvarado ISD community is heartbroken to learn about the sudden passing of two of our students and a former teacher,” AISD Public Information Officer Tommy Brown said. “Please keep both families and all their teachers, friends and classmates in your thoughts and prayers.”

Brown added that crisis counselors have been made available to students and staff in need of support.

The two students are sisters. One, Hannah Underwood, 17, was scheduled to graduate on June 5. Her sister, Hayley Underwood, 17, was a junior at AHS. Both died at the scene of the accident.

The accident occurred about 12:30 p.m. Sunday on County Road 604 south of Happy Trail Road.

The mother of the girls, Barbara Underwood, was traveling north on CR 604 in a Ford Escape. For reasons undetermined Underwood lost control of the vehicle, which veered and struck a bridge railing which impaled the front of the vehicle.

Barbara Underwood suffered serious injuries in the crash and remains hospitalized, according to reports.

Former AISD teacher Hugh Duane Nixon, 71, died on Monday following a head-on collision. The accident occurred about 3:30 p.m. on Farm-to-Market Road 917 north of Alvarado.

Nixon was driving westbound on FM 917 in an SUV, officials said. 

A woman traveling eastbound in a pickup on the same road veered into the westbound traffic lane for unknown reasons and struck Nixon’s SUV head-on. Nixon was pronounced dead at the scene.

The driver of the pickup, a 55-year-old woman, was transported to John Peter Smith Hospital in Fort Worth. Neither the woman’s identity nor details of her condition have been released.

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