English immigrant Hamnett Kirkes Pinhey established his Horaceville property and residence in March Township, Upper Canada, in 1820. In 1821 he returned to England to bring his wife Mary Anne (nee Tasker), young son Horace and infant daughter Constance across the ocean to settle in March. Two more children, Mary Anne and Charles Hamnett, were born here.
Horace Pinhey, the eldest son, married Catherine Tydd Greene from another riverfront gentry family, and took over management of the farm from his father at that time. Constance and Mary Anne married cousins, John Hamnett Pinhey and Dr. Hamnett Hill respectively, who had also immigrated from England, and they moved to Bytown (later Ottawa). Charley became a lawyer in the city and married Catherine Lewis, sister of his law partner. All had families of their own.
While some members of the 3rd and 4th generations moved farther afield than the Ottawa Valley, Horaceville remained home to four generations down to the death of Miss Ruth Pinhey, granddaughter of Horace, in 1971.