He married Mary J. Gallagher (aka Gollogher) on 12 Jun 1856 in Shelby county, Illinois. They had four children.
They were in Holland, Shelby county, Illinois in 1870 and 1880.
He passed away in 1894. He was buried in Morning View cemetery in Wallace, Lincoln, Nebraska.
↑ "Illinois, County Marriages, 1810-1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KF2K-QM4 : 18 October 2017), Henry Huber Allen and Mary J. Gallagher, 12 Jun 1856; citing Shelby, Illinois, United States, county offices, Illinois; FHL microfilm 7,710.
↑ "United States Census, 1880," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MXKV-M1G : 20 August 2017), Henry U Allen, Holland, Shelby, Illinois, United States; citing enumeration district ED 188, sheet 103A, NARA microfilm publication T9 (Washington, D.C.: National Archives and Records Administration, n.d.), FHL microfilm 1,254,251.