"J.J. Jackley" was John J. Jackley, b. Dec 1872 in Illinois, son of John Jackley and Henrietta (Nickerson, I believe).
After this marriage to Nora Belle Stetch (who was born Nov 1880), they relocated to Hughes County, South Dakota, where he continued in the real estate business through at least 1930 when I lose track of them. Their children were (from 1910, 1920 and 1930 census records):
Augusta Jackley, b. abt. 1909 Elizabeth Jackley, b. abt. 1912 Philip Jackley, b. abt. 1914 Allegra Jackley, b. abt. 1916
Philip Jackley may be found in the SSDI records; he was born 3 Oct 1913; it looks like he settled in Wolf Point, Roosevelt Co., Montana where he died in May 1979.