Whilst owned by the Yorke family the first Pateley Bridge agricultural show was held on the Grassfield Estate in 1895, before moving to its current location on what was the Bewerley Estate.
In 1896 the Collins family took up residence at Grassfield Hall. The family, from Kirkham Bank in Knaresborough, managed the Harewood House Estate. The head of the household, Major Collins, a Royal surgeon, met his wife, Olympe Amelie, (who was from Mauritius) whilst travelling with the Army. Together they had seven children. Their second daughter Amy was a keen photographer who took many photographs of her family and their friends, the Yorke family, as they socialised in the house and grounds.These photographs can be seen proudly displayed all around Pateley Bridge and here at Grassfield Hall.