In 1851 Robertson had a new play presented in the West End, "A Night's Adventure", a comic drama set in the time of the Jacobite rising of 1745. He hoped this would be start of a successful career as a dramatist, but the play was not a success, closing after four nights, and he continued to scratch a living as a writer and actor. Together with H. J. Byron, who became a close friend, he put on an entertainment at the Gallery of Illustration, without success. He worked as a prompter at the Olympic Theatre, tried unsuccessfully to join the army, and travelled to Paris with a company giving a season of English plays there. In 1855, while playing at the Queen's Theatre, he met a 19-year-old actress, Elizabeth Burton. They were married in July the following year; they had a son and three daughters. After their wedding the Robertsons toured Ireland before returning to act in London and the provinces. From 1858 Robertson, feeling that the life of a touring actor left no time for the serious business of writing plays, gave up acting and concentrated on writing.