Hiram Seeley Gilbert passed away on July 26, 1914.
Sources
"United States Census, 1850," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M4C9-D7D : 12 April 2016), Hiram Gilbert in household of Charles D Gilbert, Bradford, McKean, Pennsylvania, United States; citing family 374, NARA microfilm publication M432 (Washington, D.C.: National Archives and Records Administration, n.d.).
Pennsylvania, Death Certificates, 1906-1967; Certificate Number: 65968; Pennsylvania Historic and Museum Commission; Harrisburg, Pennsylvania; Pennsylvania (State). Death certificates, 1906–1967; Certificate Number Range: 064481-067800 (Ancestry.com) [1]