Lieutenant Herbert Clifford, R.N., aged 26.B. 2 Aug. 1789 at Halifax, eldest offspring of Dr. John D. Clifford--"Chief Medical Officer of the Naval Hospital, Halifax, during the period of the old French war" (Hill, 1875)--and of Elizabeth (Collins) Clifford.
The quotation above is from Hill's"Biographical Sketches of Eminent Nova Scotians"--in which there is an article about the son rather than the father. Hill places this same Herbert Clifford on a level with such well known figures as Howe, Robie, Archibald (whose second wife was Joanna Brinley), Cunard, and Westphal, and he says that Herbert Clifford had an outstanding if somewhat curtailed naval career and was subsequently a zealous promoter of Christian missions in the Far East, particularly the Loo-Choo Islands (now known as the Ryukyu Islands)--to which area he sailed with the celebrated Basil Hall around 1816 and drew up a vocabulary of the Loo-Choo dialect, which vocabulary was published in Hall's Account of a Voyage of Discovery to the West Coast of Corea and the Great Loo-Choo Island. With an Appendix and a Vocabulary of the Loo-Choo language, by H.I. Clifford (1818). Just prior to this voyage Clifford was, as Hill puts it, "resting on his oars" in England, having been struck down by a pulmonary ailment that appears to have all but destroyed his promising naval career. It is likely that it was during these circumstances that he wrote the letters Louisa refers to. As things turned out, he never returned to Nova Scotia. Shortly after the voyage to the Far East, he settled in Dublin, "where he had some small patrimony," and married a lady by the name of Hamilton. He was living at Tramore, in Waterford, when he died around 1855, his wife having predeceased him by many years.
It seems that as a youth, Herbert Clifford was virtually brought up at Colin Grove. According to Hill:
"Herbert was the eldest of the family, and for twenty years the only child of the marriage, his father having been ordered to the East Indies at that critical juncture in public affairs which occurred at the time of his boy's birth; and, because of the pressing emergency, remaining absent from his home during that long period of years. While the Doctor was abroad on duty, his wife took up her residence at the farm of her relative [i.e., her father Robert Collins--the vagueness is perhaps owing to an uncertainty on the part of Hill about whether Colin Grove then belonged to Robert or to his son Stephen], instead of remaining in town, and Herbert Clifford, like young Westphall, spent his boyhood among the groves and by the lakes of the township on the eastern side of the harbor. His brother, more than a score years younger than himself, Mr. Hood McKenzie Clifford, but lately died at Dartmouth, having for many years resided at the farm of his grandfather."Robert Collins was the grandfather of Hood Clifford through Clifford's mother Elizabeth Collins Clifford; and Robert Collins was the grandfather of Hood Clifford's wife Georgiana through her father Stephen Collins.