William Sly died in September 1697, I obtained the following details from his will which is online in the National Archive. He left estates both freehold and leasehold in Dogsthorpe, Eastfield, and Newark to his son, also named William Sly, who was not yet 21. His loving wife received the furniture of the best chambers, some plates, spoons and a silver cup.

 

If his son should die before his 21st birthday the estate was to be split between the elder William's three sisters, Anne Miller wife of William Miller of Thorney Abbey, Susanna Miller wife of William Miller of Stibbington, and Mary Sly a spinster who lived in Dogsthorpe.

 

Sly's Farm can be seen on the 1889 map, follow the link for more about it's history.