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Wednesday, November 11, 2026Nov 11

Siblings contest late CEO father’s million-dollar estate, saying stepmother excluded them

J. Don Brock, right, and his son Ben stand near a piece of machinery manufactured by their company, Astec Industries, in Chattanooga, Tenn.
J. Don Brock, right, and his son Ben stand near a piece of machinery manufactured by their company, Astec Industries, in Chattanooga, Tenn. J. Don Brock, right, and his son Ben stand near a piece of machinery manufactured by their company, Astec Industries, in Chattanooga, Tenn.
photo J. DON BROCK

Five adopted children of the late Astec Industries CEO J. Don Brock are contesting their father’s estate in a lawsuit, claiming their stepmother unfairly axed them from a will drawn up in October 2013.

Melissa Sue Brock Adcock; Krystal Gail Brock Parker; Jennifer Rebecca Brock; Daryl William Brock and Walter Edward Brock “were unaware of being disinherited until after their father’s death,” according to a lawsuit filed in Hamilton County Chancery Court.

Their copies were shipped in the mail, the suit says, but one sibling had to inform Walter Brock since his notice never arrived.

The siblings’ lawsuit lists three contested grounds. One is the authenticity of their father’s signature, which “only appears on the last page of the will.”

For proof, the suit pointed to the signatures of the witnesses as Brock signed his will: “They were officers or employees of Astec Industries, and had a financial interest in the company.”