There are 1 titles associated with this firm.

@book{ wphp_10978
  author={Welsh,Mary Ann Wilson},
  year={1830},
  title={The musical alphabet: arranged expressly for the instruction and amusement of children. By Mrs. T. Welsh; designed on stone by H.C. Maguire.},
  publisher={Thomas Welsh, Harmonic Institution},
  address={London},    }