Lockwood was born in
Doncaster, the son of Charles Day Lockwood. His great-grandfather Joseph Lockwood (c. 1758–1837) was twice mayor of Doncaster, and his grandfather was for many years judge on the racecourse. Lockwood was educated at a private school, at
Manchester Grammar School, and
Caius College, Cambridge. Lockwood was called to the bar at
Lincoln's Inn in 1872, and joined the old midland circuit, afterwards going to the north-eastern, making in his first year 120 guineas and in the next 265 guineas. From that time he had a career of uninterrupted success, Lockwood made two unsuccessful attempts to enter parliament, the one at
King's Lynn at the
1880 general election, the other at
York at
by-election in 1883. He was elected Liberal
Member of Parliament (MP) for York at the
1885 general election and held the seat until his death in 1897. In 1894 he became
solicitor-general in
Lord Rosebery's ministry, and was knighted. He was solicitor-general for less than a year. In May 1895 Lockwood was lead counsel for the prosecution in Regina v. Oscar Wilde. The Liberal government seemed determined to secure a successful prosecution. Edward Carson, who had successfully defended the Marquess of Queensberry against Wilde's misguided criminal libel, approached Frank Lockwood and asked "Can we not let up on the fellow now?". Lockwood answered that he would like to do so, but feared that the case had become too politicised to be dropped. In 1896 Lockwood accompanied
Lord Chief Justice Russell and barrister Montague Hughes Crackanthorpe to the
United States to attend the nineteenth meeting of the
American Bar Association as specially invited representatives of the English bar. On the trip he sustained the reputation which he enjoyed in England as a humorous
after-dinner speaker, and helped to strengthen the bond of friendship between the bench and bar of the United States and the bench and bar of England. Lockwood was the brother-in-law of the 21st
MacLean of Lochbuie and there is a small island off the coast of
Mull in Scotland near
Lochbuie named after him. ==References==