If you haven't by now had a reply from anyone else or are still looking for more info, I can help. Contact me via firstname.lastname@example.org.
For advanced clarity, Pierre (Sir Peter Le Page) Renouf and wife Ludovica von Brentano had two children: Philip born 1858 and Mary (Edith) born 1863. Philip married Jane Tomlin and they had three children: Louis Percy Watt born 1888, Lilian Rose (b 1889 - became Rev Mother Philomena OSB) and Paul Emile born 1891 who emigrated to Australia and on whom I have little else except it is believed he had a son Paul who had two sons Simon and David; I also have a Dr Patrick Louis Renouf who id descended either from Paul Emile (doubtful) or Louis (and wife Edythe Wareing). Contact me if you want more data.
Patrick Archivist, St John the Baptist Catholic parish, Andover