Landreth, Burnet–(1842-1928)–Philadelphia, Pennsylvania–son of David Landreth, Jr., was the third generation to run the seed house.  He was a partner in the business until it was incorporated in 1904 as the D. Landreth Seed Co., and was the president of the corporation until his death.  He was chosen chief of the Bureau of Agriculture of the U. S. Centennial International Exhibition at Philadelphia in 1876.  In 1878, he declined President Hayes’ offer of Commissioner of Agriculture.  He was the author of Market Garden and Farm Notes (1892), and articles in horticultural journals.
Sources: Kellen; NCABv24; Bailey