Andrew, forgive me if I did not have my facts straight to begin with regarding the relationship between The Old Squire William Agnew and his successor, Edward Jones Agnew.My source, The Congregational Memoirs of the Old Larne-Kilwaughter Presbyterian Church where the Agnews attended, state that Mr. Edward Jones Agnew was a grandson of the old Squire, William Agnew, whose only son, Mr. Sinclair's pupil, had died during his father's lifetime, young and unmarried.
Also, from the same Congregational Memoirs, "Mr. Edward Jones, who on succeeding to the Kilwaughter estate, took the name of Agnew, in compliance with his grandfather's will, was son of Mr. Valentine Jones of Belfast, by his third wife, who was the only daughter of "the Old Squire," Mr. William Agnew...Mr. Jones Agnew, until the day of his dateth (which took place in March, 1834)...continued a member of our Congregation.So did his relative, the late Mr. P. Agnew, of Larne;but the Agnew family are now, of course, all members of the Established Church.
There is a website that states Margaret Jones is Edward Jones' successor at Kilwaughter.I believe she is his daughter.
The famine's scars: William Murphy's Ulster and American odyssey - 19th-century Irish famine
In the late eighteenth and early nineteenth centuries Kilwaughter's landlord, Edward Jones Agnew, had granted his tenants leases of twenty-one years and two "lives," one of which was his own; thus his death in 1834 meant that the expiration of most leases would coincide with the onset of the potato blight. Margaret Jones, Agnew's successor as proprietor, enjoyed a benevolent reputation and apparently did not evict head tenants during the crisis.
Marriage announcement from an old Dublin Newspaper:
Sat., 6 July 1765 - Tues. 9 July 1765
At Belfast, Mr. John GALT SMITH to Miss Jane JONES.
From another message board post I gleaned the following:
Squire Agnew had a daughter (Georgina?) who went to Italy where she married a Count. When she returned to Kilwaughter as Countess Balzani, she established two schools for the area, one of which has since been turned into two private houses. The plaque still exists above the house door.
During the First World War, wounded American officers were among those who found comfort at Kilwaughter Castle, then the home of a fellow American, Mrs. Elizabeth Galt Smith, who had married an Ulsterman. The Castle was also to be utilised during the Second World War, as were its grounds. The fact that the castle was the property of the Italian Balzani family resulted in it being declared enemy territory, and unfortunately in the years after the war the building greatly deteriorated.
The plaque at Kilwaughter Village Hall marks the connection between the area and the American forces stationed there. A large group of them were featured in a painting after attending Easter service in St. MacNissi's Church in 1944; sadly many were to die on the beaches of Normandy a short time after. The painting is still in the possession of St. MacNissi's Parish.
Finally, I found on line another later marriage record of a John Galt Smith who married a Margaret, with the name James Agnew appearing amongst the children.Perhaps this is the John Galt Smith who is connected with the Rockwood estate in in Connecticut (I believe), where some of the furniture from Kilwaughter castle is housed to this day.
I'm sorry I don't have the family tree put together, but this is not my line of descent, so I have not investigated the Agnews more thoroughly than this.
I think the problem is with the sheer NUMBERS of Agnews there are;I understand they kept coming to Ireland throughout the years, so some of them may be less related to the Old Squire than others.
Hope you get it sorted out!(Or at least having fun trying).