There are 5 titles associated with this firm.

Williams, Helen Maria. The History of Perourou; or the Bellows Mender, and interesting tale; by Miss Williams; Author of Paul and Virginia; Letters from France, &c. &c. Embellished with a frontispiece. London: Thomas Tegg and Castleman, William Champante and Benjamin Whitrow, Benjamin Crosby and Co., Wilmott and Hill, Howard and Evans, 1803.
Rowse, Elizabeth. Outlines of English History, in Verse. By Elizabeth Rowse. London: William Darton and Joseph Harvey [Gracechurch], John Harris [1802-1819, 1824-1843], William Kent, R. and Lucy Peacock, Juvenile Library, Joseph Burditt, Wilmott and Hill, 1808.