Son of Andrew & Elizabeth (Gregory) Gregg. Husband to Harriet J. Gregg, and father to four children: Webster, Thomas, Mary E., and George H. Gregg. Enlisted as a 2nd Sergeant on August 15, 1862 at the age of 35. Joined Co. H, 30th Iowa Infantry Regiment on September 14, 1862. Promoted to 1st Sergeant on June 2, 1863. Died of disease on June 22, 1863 at Walnut Hills, MS
Henry married Harriet J. Robb, daughter of Samuel Robb and Mary Hitch, about 1852 in IA. (Harriet J. Robb was born in 1829 in OH,2 died on 21 Jan 1878 in IA and was buried about 24 Jan 1878 in Moorman Cemetery, Fairfield, Jefferson Co., IA.)
1 1860 IA Census, Henry Gregg is listed as age 33 in the 1860 Locust Grove, Jefferson County, IA census, born in OH.
1850 IA Census, Listed as age 21 in the 1850 Locust Grove, Jefferson Co., IA Census, born in OH.