In the early decades of the century, sculpture commissions in Scotland were often given to English artists. Thomas Campbell (c. 1790 – 1858) and Lawrence Macdonald (1799–1878) undertook work in Scotland, but worked for much of their careers in London and Rome. The first significant Scottish sculptor to pursue their career in Scotland was John Steell (1804–1891). His first work to gain significant public attention was his "Alexander and Bucephasus" (1832). His 1832 design for a statue of Walter Scott was incorporated into the author's memorial in Edinburgh. It marked the beginnings of a national school of sculpture based around major figures from Scottish culture and Scottish and British history. The tradition of Scottish sculpture was taken forward by artists such as Patrick Park (1811–1855), Alexander Handyside Ritchie (1804–1870) and William Calder Marshall (1813–1894). This reached fruition in the next generation of sculptors including William Brodie (1815–1881), Amelia Hill (1820–1904) and Steell's apprentice David Watson Stevenson (1842–1904). Stevenson contributed the statue of William Wallace to the exterior of the Wallace Monument and many of the busts in the gallery of heroes inside. Public sculpture was boosted by the anniversary of Burns' death in 1896. Stevenson produced a statue of the poet in Leith. Hill produced one for Dumfries. John Steell produced a statue for Central Park in New York, versions of which were made for Dundee, London and Dunedin. Statues of Burns and Scott were produced in areas of Scottish settlement, particularly in North America and Australia.