198 A FORGOTTEN ESSEX GARDENER-BOTANIST. By CHARLES HALL CROUCH, F.S.G. (Concluded from p. 168.) The location of Gilbert Slater's house in Leyton has been difficult. A book appeared in 1871, which gave the name of his house as "Leyton House, Essex," but there have been three "Leyton houses" in the parish, two of them at Knotts Green, where we know Gilbert Slater lived. Some thirty odd years ago I copied the Leyton rate-books from 1783 to 1806, and a few for later years, and these show that Gilbert Slater must have lived in what is now known as "Livingstone College," a medical missionary college incorporated in 1900 as a memorial of the late Dr. Livingstone, and formerly the home of the Barclay family for 80 years. The fact that it was at one time known as "Leyton House" is something new for the history of Leyton. Kennedy, in his History of Leyton, regrets that all he is able to say about the house, which he calls "Mr. Barclay's House," is that it was purchased by the father of Mr. J. G. Barclay from a Mr. McTaggart, a gentleman of Scotch extraction, about 1821. Actually this must have been the purchase of a leasehold interest, as Mr. Joseph Gurney Barclay bought the freehold of the estate from Colonel Boldero in 1862. The house is shown in Rocque's Map of London and Environs, 1741-5, but the only place it is given with the name "Mr. Slater" attached to it is in the first edition of Cary's Survey of the High Roads from London, 1790, and then on so small a scale that no stretch of imagination could locate it with Livingstone College. The name of Gilbert Slater first appears in the Leyton rate books in 1786. He was succeeded by Mrs. Slater in 1794, Wm. Blake in 1795, the above Mr. McTaggart in 1799, and a Robert Barclay in 1834. The house seems to have been built between 1733 and 1745. In 1755 it was in the occupation of a Mr. Johnson. He was followed in 1758 by Mr. George Stow. Stow was the tenant until 1768, when it became the residence of "Charles Jackson,