​McCOMBIE, WILLIAM (1805-1880), Scottish agriculturist, was born at Tillyfour, Aberdeenshire, where he founded the herd of black-polled cattle with which his name is associated. He was the first tenant farmer to represent a Scottish constituency, and was returned to parliament, unopposed, as Liberal member for the western division of Aberdeen in 1868. He died unmarried in February IS8O. His work Cattle and Cattlebreeders (1867) passed into afourth edition in 1886.