Andre hendelser:

• Dåp: 9 Sep 1839, Ullensaker, Akershus

Notater:

D?de ugift i f?lge "Slegten Irgens"

Fra War of the Rebellion records:

http://www.rootsweb.ancestry.com/~mtygf/county/survey_summary.htm

1872
Major Barlow assisted by Second Lieut. Henry A. Irgens accompanied the Northern Pacific Railroad engineers in their surveys in 1872 eastward from Fort Ellis, which they left July 27, to the Yellowstone, thence after a few days' work northward to the Muscleshell[1], up this valley, across the Belt Range, and down Sixteen-Mile Creek to the Missouri. Maj. J. W. Barlow, Corps of Engineers, commanded the expedition. Bvt. Col. E. M. Baker, major Second Cavalry, commanded the escort of three hundred and seventy-six men, cavalry and infantry. The survey disbanded at Fort Ellis about September 29, 1872. The report was published in Ex. Doc. No. 16, third session Forty-third Congress. A map (scale I to 1,200,000) of the country and a survey of the camp where an Indian battle occurred were made, but not published with the report.