New site on line which lets you search the indexes free: the followings are listed:Will of Thomas Keehow or Keho otherwise Keeho, Mariner of St. George in the East, Middlesex, Date:07 September 1769.
Will of Thomas Keho, Victualler of Saint Martin in the Fields, Middlesex, Dated 04 February 1768
Will of Hugh Keho of Saint Giles in the Fields, Middlesex, Dated 31 December 1790
Will of Michael Kehoe, Merchant of Wickham, Dublin, Dated 16 January 1821.
Source:Documents on line- Senior Court of Probate for England & Wales-They will want to charge a fee if you want copies of the wills.Just came across the names and they were not any of my Kehoes, thought they might help someone else.