When Hiram C. Ransom was born about 1836, in Oregon, United States, his father, Samuel Ransom III, was 38 and his mother, Nancy Ann Phillips, was 26. He married Clarissa Bird on 25 July 1861. They were the parents of at least 10 sons and 7 daughters. He lived in Montpelier, Muscatine, Iowa, United States in 1850 and Curry, Oregon, United States in 1910. He died on 17 September 1913, in Smith River, Del Norte, California, United States, at the age of 78.
patronymic from the Middle English personal name Rand , a pet form of the personal name Randolf (see Randolph ), + -son.
perhaps a variant of Ramsden .