[3] On 29 June 1865 he was the original Launcelot Darrell, a murderer, in Eleanor's Victory, adapted from Miss Braddon by John Oxenford ; at the Olympic, 9 December, the original Clement Austin in Henry Dunbar, or the Outcast, adapted by Tom Taylor from L'Ouvriere de Londres, itself founded by M. Hostein on Miss Braddon's novel; on 25 April 1866 was the first Sir Charles Ormond in Leicester Silk Buckingham's Love's Martyrdom ; and on 27 September 1866, the first Captain Trevor in Tom Taylor's Whiteboy.

[3] Montague's first appearance at the Prince of Wales Theatre under the Bancroft management took place as Dick Heartley, an original part, in Boucicault's How she loves him, 21 December 1867, and Frank Price in Robertson's Play followed, 15 February 1868.

Back at the Prince of Wales's he was, 12 December 1868, the original Waverham in Mr. Edmund Yates's Tame Cats, and on 16 January 1869 made his first distinct mark as Lord Beaufoy in Robertson's School.

[3] In partnership with David James and Thomas Thorne, he opened the Vaudeville Theatre on 16 April 1870, speaking an address by Shirley Brooks, and playing George Anderson in Andrew Halliday's comedy For Love or Money.

[3] In 1871 he seceded from the management, and became sole lessee of the Globe, opening 7 October 1871 with Henry James Byron's Partners for Life, in which he played Tom Gilroy, a young barrister.

[3] Montague subsequently returned to America, and died at The Palace Hotel in San Francisco on 11 August 1878 succumbing to hemorrhage of the lungs brought on by a severe cold which turned into pneumonia.