His death certificate records Isaac P. Ferguson, age 62 years 5 months 27 days, born 25 April 1877 in Morgan Co., Ky, died 22 Oct 1939 in Portsmouth, Scioto Co., Ohio, residence 6106 Harding Ave., married, husband of Rachel Ferguson, occupation W.P.A. worker, father French Ferguson, born in Louisa, Kentucky, mother’s maiden name Ceralia Ison, born in Elliott Co., Ky, cause of death cerebral hemorrhage, informant Mrs. Rachel Ferguson, burial in Moon, Ky.

I have no relation to Isaac or either of his wives; I am just entering them because there were four Isaac Fergusons in Morgan Co. born 1874 to 1877, and I want to be able to tell them apart. Besides the other three of nearly the same age (Isaac Lee, Isaac Franklin and Isaac E), this Isaac Ferguson is sometimes confused with Isaac William Ferguson b. 25 Dec 1855, son of Richard Ferguson and Susannah Ison, who married Mary Skaggs. Although they are a different generation, the names of their parents and wives are so similar that if birthdates are not mentioned it can be unclear which one is intended.

1920 census of Scioto Co., Ohio, Porter township, enumerated 8 Jan, lists on p. 5B as family #105:
Ferguson, Isaac, 42, laborer solvay (sp?); Rachel, wife, 40; Smith, Jay, 23, boarder, married; Erma, 20, boarder, married. All born Ky Ky Ky.

1930 census of Scioto Co., Ohio, Portsmouth ward 6, enumerated 15 April, lists on p. 16B as family #398/379:
Ferguson, Isaac, 52, age at first marriage 31; Rachel, wife, 51, age at first marriage 32. Both born Ky Ky Ky.