Laurence Campbell was the younger brother of the painter Christopher Campbell.
While still attending classes, Laurence, a reserved person, began stone carving with a firm of commercial sculptors. He also studied at the Metropolitan School of Art, winning the Taylor Scholarship in 1935 and the Henry Higgins travelling Scholarship in 1936.
His sculptures are in all the prominent public galleries in Ireland as well as Áras an Uachtaráin, Leinster Lawn, the Phoenix Park etc.