Here, EB, pull the other one . . .
According the Wikipedia article on James Hogg:
The following year he married Sarah Ann Stinson. They had four children, Will (1875), Ima (1882), Mike (1885), and Tom (1887). Ima was named for the heroine of the novel The Fate of Marvin, written by Hogg's older brother Tom in 1873. Although legend states that the Hoggs also had a daughter named Ura, that allegation is false.
Which, by the way, makes my original statement somewhat incorrect. Ima was his oldest daughter, because she was his only daughter.