Frank Tenison Brennan (6 December 1884 – 6 August 1949) was a Labor Party politician, lawyer and Supreme Court judge.

The men were trapped at Mr Brennan's house, where holes had been bored in the walls to allow detectives and shorthand writers to obtain a complete record of their conversation.

[2] In 1925 he was elevated to the Supreme Court Bench on the retirement of Mr. Justice Shand; from 1925 until 1947 he was stationed in Central Queensland, and for his last two years in Brisbane.

Mr. Justice Brennan died in the Mater Private Hospital, Brisbane, where he had been admitted several weeks previously, suffering from heart trouble.

Mr. Justice Brennan left a wife, son Gerard, who was studying law, and daughters Anne (his associate) and Mary.