There are 9 titles associated with this person.

Walpole, Horace. The Mysterious Mother. A Tragedy. By the Hon. Horace Walpole. London: John Roe [Houndsditch], 1796.
Walpole, Horace, Harriet Lee, and Robert Southey. The castle of Otranto. A gothic story. By Horace Walpole. ; And Lothaire. A legend. By Harriet Lee. New York City: David Longworth, 1801.
Walpole, Horace, and Clara Reeve. The Old English Baron: A Gothic Story. By Clara Reeve. And the Castle of Otranto. By Horace Walpole, Earl of Orford. With a biographical preface. London: John Walker II [44 Paternoster Row, 1784-1814, 1818-1825], John Harris [1802-1819, 1824-1843], 1808.
Smith, Charlotte, John Moore, Richard Graves, Maria Edgeworth, Elizabeth Inchbald, John Hawkesworth, Samuel Johnson, Ann Radcliffe, Frances Burney, Charlotte Lennox, Oliver Goldsmith, Francis Coventry, Horace Walpole, Henry Fielding, Samuel Richardson, Clara Reeve, and Frances Brooke. The British Novelists; with an Essay; and Prefaces, Biographical and Critical, by Mrs. Barbauld. London: Joseph Johnson and Co., Joseph Booker, Thomas Cadell and William Davies, Sherwood, Neely, and Jones, Benjamin Crosby and Co., Joseph Mawman [Poultry], George Wilkie and John Robinson, James Scatcherd and Letterman, Charles Law, James Malcott Richardson, Francis, Charles and John Rivington, Andrew Strahan [1788-1806, 1817-1831], Robert Baldwin I, William Creech, Ann Vernor, Thomas Hood, and Charles Sharpe, John Richardson [Royal Exchange], John Miller [69 Fleet Street], Longman, Hurst, Rees, and Orme, James Asperne, Thomas Payne II, Samuel Bagster [Strand], Elizabeth Mathews and Samuel Leigh, Wilson and Son, James Nunn, Lackington and Co., Richard Lea [Greek Street, Soho], Edward Jeffery [Warwick Street], Hannah Black, Parry, and Kingsbury, J.K. Newman, William Clarke and Son, William Otridge and Son, Thomas Booth, John Harding, J. Faulder, George Robinson [iii], James Carpenter [14 Old Bond Street], Richard Phillips [6 Bridge Street], William Lowndes [Bedford Street], John Walker II [44 Paternoster Row, 1784-1814, 1818-1825], Cuthell and Martin, John Murray II [Fleet Street], Robert Baldwin III, 1810.
Burgoyne, John, Charles Macklin, Samuel Foote, James Townley, Kane O'Hara, Henry Carey, John Gay, Richard B. Sheridan, Richard Cumberland, Oliver Goldsmith, George (. e. Colman, Henry Fielding, Susanna Centlivre, Richard Steele, George Farquhar, Isaac Bickerstaff, Colley Cibber, John Vanbrugh, David Garrick, William Wycherley, Robert Howard, George Villiers, John Milton, Horace Walpole, Hall Hartson, Benjamin Franklin, Arthur Murphy, Robert Dodsley, John Home, John Brown, Henry Jones, Richard Glover, Edward Moore, William Mason, William Whitehead, Samuel Johnson, James Thomson, James Miller, Henry Brooke, William Havard, Aaron Hill, Benjamin Hoadly, George Lillo, Elijah Fenton, Edward Young, John Hughes, Ambrose Philips, Joseph Addison, Nicholas Rowe, William Congreve, Thomas Southerne, Thomas Otway, John Dryden, Nathaniel Lee, Philip Massinger, Francis Beaumont, John Fletcher, William Shakespeare, Ben Jonson, and Frances Brooke. The Modern British Drama. In five volumes. London: William Miller [Albemarle Street], 1811.
Reeve, Clara, and Horace Walpole. The Old English Baron: A Gothic Story. By Clara Reeve. And the Castle of Otranto. By Horace Walpole, Earl of Orford. With a biographical preface. London: John Walker II [44 Paternoster Row, 1784-1814, 1818-1825], John Harris [1802-1819, 1824-1843], 1811.
Burney, Frances, Maria Edgeworth, Elizabeth Inchbald, Ann Radcliffe, Samuel Richardson, Charlotte Lennox, Oliver Goldsmith, Charlotte Smith, Horace Walpole, John Hawkesworth, John Moore, Francis Coventry, Henry Fielding, Samuel Johnson, Richard Graves, Daniel Defoe, and Clara Reeve. The British Novelists; with an Essay, and Prefaces Biographical and Critical, by Mrs. Barbauld. A New Edition. London: Joseph Booker, Thomas Cadell and William Davies, Joseph Mawman [Poultry], James Scatcherd and Letterman, Francis, Charles and John Rivington, John Richardson [Royal Exchange], John Miller [69 Fleet Street], James Asperne, Samuel Bagster [Strand], James Nunn, Lackington and Co., James Carpenter [14 Old Bond Street], William Lowndes [Bedford Street], Cuthell and Martin, John Murray II [Fleet Street], Edward Jeffery and Son, Longman, Hurst, Rees, Orme and Co., T. Wilkie, J. and W. T. Clarke, John Otridge [1816-21], James Black [York Street], Hannah Black and Co., John Richardson [Royal Exchange], James Malcott Richardson, R. Scholey, Robert Harding Evans [96 Pall Mall], A. K. Newman and Co., John Booth, William Ginger [1767-1792, 1805-1830], Baldwin, C. Cradock, and W. Joy, Thomas Hodgson, John Bohn, John Ebers [27 Old Bond Street], Sherwood, Neely, and Jones, G. and W. B. Whittaker, Stirling & Slade, Fairbairn and Anderson, Henry Setchell and Son, Whitmore and Fenn, Rowland Hunter, G. Cowir and Co., R. Saunders, Thomas and Joseph Allman, J. Boone, C. Brown, J. Brumby, Edwards and Co., Thomas Hamilton, J. Lepard, G. Mackie, William Mason [London], Ogle, Duncan, and Co., John Rodwell and Martin, Thomas Hurst, George Robinson and Co. [Cheapside], Thomas Wilson and Sons, 1820.
Fielding, Henry, Tobias G. Smollett, Alain R. Le Sage, Charles Johnstone, Laurence Sterne, Oliver Goldsmith, Samuel Johnson, Henry Mackenzie, Horace Walpole, Clara Reeve, Samuel Richardson, Jonathan Swift, Robert Bage, Richard Cumberland, and Ann Radcliffe. Ballantyne's Novelist's Library. Edinburgh: Thomas Hurst, George Robinson and Co. [Cheapside], John Ballantyne, 1821.