A possible link for Shobdon with Kinnersley area.
Shobdon Court had a parterre made in 1860ish by William Andrews Nesfield. He also did works at Broxwood Court, Nieuport, Garnstone all close to Kinnersley, and other places like Stoke Edith, Willey Hall, all designs on parkland.
Look him up on Google and see if you think this is a possibility.