Professionnal photo sessions

The most notorious photo sessions done in Kinfauns are as follows :

• 1964 : George Harrison is displaying his new house. The swimming pool is not here for instance. released in 16 Magazine release. Photograph not credited
• 1965 : Henry Grossman photographs George Harrison and his new Aston Martin DBS, as well. He also shoots George and Patti near the house. 
• 1965, October 7 (1) : Leslie BRYCE, for Beatles Book (Monthly) photographs the "Quiet Beatles" around the swimming pool. The former garage is not connected to the main building yet.
• 1966 : George Harrison marries Pattie Boyd. Some shots are done the day before the wedding. The wedding reception is celebrated in Kinfauns, and the official family photographs are done in the (then) dining room. Shots by Robert Freeman
• 1966 : Donovan is photographed by David Redfern in the dining room for the cover of Mellow Yellow .
• 1966 Henry Grossman takes pictures of George Harrison strumming his sitar and convince him to find a decent teacher. He will choose Ravi Shankar.
• 1967, Feb 28th : George Harrison is celebrating his 24th birthday. Just before a group shooting, Henry Grossman take a few pictures of him, some with Pattie. Later on, Mr Grossman also attends the dinner with a few guests, but no other Beatle, among others are the Byrds' Roger McGuinn and David Crosby, Pattie's friend Belinda Volpelière-Watson, sarod player Ali Akbar Khan, Mahapurush Misra (tabla)  and Amiya Dasgupta (sitar).
• 1967 june : Robert Whitaker photographs the fool fireplace, but also George Harrison begining the painting on the outter walls. A picture of Pattie will be published in Vogue as "Pattie Harrison and the painted house". Another will make the cover of his autobiography " "Wonderful Tonight.
• late 67 : Rehearsals for the Wonderwall sessions in the music room with Monkee Peter Tork (photographer unknown). selected shots will be available in the november 67 edition of the Flip magazine (source : A is for Apple, vol.1)
• 1969 april : John Haynes photographs the Beatles in his kitchen but also under the willow tree and in the recent greenhouse for release in Times.

Fan visting George Harrison also made some pictures some got relased in their books or some magazine.
Here are the ones I am aware :

1. Leslie Samuels. President of the american George Harrison fan club. Made at least two visits. One of them was recorded and bootlegged as "The Little Girls tapes". Her recollection made onto a book.

Sources :

(1) Looking Through You: The Beatles Book Monthly Photo Archive