Updated through online information from John Basile. -- Hook relocated to new church in 1862, possibly by Giles Beach. In the 1870s, as part of the Episcopal Oxford movement, alcoves were created on either side of the chancel and the organ was relocated into the right alcove, I presume by Beach as he has signed wooden pipes shortly thereafter. The original case would have been abandoned at this time. Beach and his son signed pipes for several years thereafter.
Updated through online information from William Dunklin. -- A history written in 1945, available on the church's website, implies that the 1851 Hook was the church's second organ. cost $1,100, and was moved to the church's new building in the middle 1860's. The document further states that it was expanded and moved within the church in the latter half of the 19th century.
Identified from company publications as edited and expanded in The Hook Opus List 1829-1935, ed. William T. Van Pelt (Organ Historical Society, 1991).