During my research for the James Green Esq., that I have been trying to trace, I have come across some references to the various other James Greens, which may be of interest to other people who may visit this site.... viz:- the one who was the Consul General in Tangiers, appointed 19th March 1806? and retired in July 1817, after overseeing the new building. His wife died 21st January 1837 in Bentinck Street, London, she was the sister of Lord Dufferin and Claneboye.
Also Captain James Green R.N., who commanded H.M.S. Daphne, 22 guns in 1813.
James Green of Lincoln's Inn Fields, who died 20th September 1850.
James Green of Portsmouth House, Todmorden.
James Henry Green of Penge Park, Anerley.
James Green the portrait painter, of South Crescent, Bedford Square, London who died 27th March 1834 at Bath.
James Green of the Falcon Glass Works Holland Street and Brixton.
The only info that I have read from other sources, which may not be reliable, about the Greens that you are following is listed below.
P.J. Green who married Frances Dorothea, 2nd daughter of John Larking of Clare House Kent and niece to Sir Charles Style.
John Philip Green of Ceylon, his eldest son who was married on the 25th March 1857 at the Parish Church of West Malling to Jane Mary 2nd daughter of the late Avetas Akers Esq. of Malling Abbey, Kent.
Philip Green was born 1797 at Boyne House, Uxbridge Road, Kensington, London, a merchant and Consul General for Morea, died 10th January 1861 and his son Octavius born in 1823 at Zante. He bred in 1871, 'Monarch' the prize winning mastiff, whilst living at Boyne House. In 1891 he was stated as being as the lawful attorney of Dame Mary Green, the widow of Sir Wiliam Kirby Green, late of Tangier.