John Bateman’s Great Landowners, first issued in 1876 and repeatedly revised, distilled the parliamentary Return of Owners of Land of 1873 into the standard reference on who owned Victorian Britain. Bateman listed every owner of substantial acreage with their seat and holdings, and his pages remain the quickest way to place a landed family at a fixed point in the late nineteenth century.
The 1878 edition records, at page 466, both branches of the family that had held the Manor of the Dungeon since 1680: “LEE-WARNER, Henry James, of Walsingham Abbey, Fakenham,” the senior line in Norfolk, and “LEE-WARNER, Robert Henry, of Tibberton Court, Hereford,” the branch descended from the Reverend Daniel Henry Lee Warner, with which the evidence places the Canterbury property. The entry fixes Robert Henry Lee-Warner at Tyberton in the year of Bateman’s survey, consistent with the census returns of 1881 and 1891 and with his presumptive tenure of the manor between 1858 and his death in 1895.
Bateman, John. The Great Landowners of Great Britain and Ireland. London: Harrison, 1878. Public domain. Available through the Internet Archive at archive.org/details/greatlandownerso00bate, from which the download above is served. A self-hosted copy will be added to this archive in due course.