There are 6 titles associated with this firm.

Wesley, Charles. Sermons by the late C. W. With a memoir of the Author, by the Editor. London: Robert Baldwin, Charles Cradock, and William Joy, Leonard Benton Seeley [Fleet Street], Thomas Blanshard [or Blanchard], 1816.
Richings, Rebecca. Elijah: A Poem. By a Lady. London: Josiah Conder [St. Paul's Churchyard], Leonard Benton Seeley [Fleet Street], 1818.
Browne, Mary A. Mont Blanc, and Other Poems. By Mary Ann Browne, in her fifteenth year. London: John Hatchard and Son [187 Piccadilly], W. Benning, Leonard Benton Seeley [Fleet Street], 1827.
Bailey, Mary. The Months and Other Poems. By Mrs. Bailey. London: John Hatchard [190 Piccadilly], William Oliphant, James Nisbet [Berners Street], Leonard Benton Seeley [Fleet Street], Charles, John, George and Francis Rivington, Richard Moore Tims, William Curry, Jun. & Co., Thomas Oliver and George Boyd [High Street], William McComb, George William Fulcher, G. Philips, 1833.