I found your message posted on the Genealogy Forum and was very interested in what you had to say. I am a direct descendant of John Kilner that you mentioned. He was my great, great, great grandfather. I am the descendant of John William Kilner of Thornhill Lees, Wakefield, brother of Nancy Kilner your great, great grandmother, who I have a date of birth of 1854 and married George Rhodes. I too have a copy of the last will and testament of John Kilner of Brook House. I have also got photographs of Nancy Kilner and family.
I have taken over the task of researching the Kilner family history from my grandfather and would be very interested in hearing what information you have on the family.