There are 3 titles associated with this person.

@book{ wphp_14536
  author={Lefanu,Alicia Sheridan},
  year={1812},
  title={The Sons of Erin; or, Modern Sentiment: A Comedy, in Five Acts. Performed at the Lyceum Theatre. By Mrs. Lefanu. The Second Edition.},
  publisher={James Ridgway [170 Piccadilly] \& },
  address={London},    }
@book{ wphp_14534
  author={Lefanu,Alicia Sheridan},
  year={1812},
  title={The Sons of Erin; or, Modern Sentiments: A Comedy, in Five Acts. Performed at the Lyceum Theatre. By Mrs. Lefanu.},
  publisher={James Ridgway [170 Piccadilly] \& },
  address={London},    }
@book{ wphp_14535
  author={Lefanu,Alicia Sheridan},
  year={1812},
  title={The Sons of Erin; or, Modern Sentiments: A Comedy, in Five Acts. Performed at the Lyceum Theatre. By Mrs. Lefanu. The Third Edition.},
  publisher={James Ridgway [170 Piccadilly] \& },
  address={London},    }