I show Mary O'Neil- daughter of James/Ann Monahan Hurney died in Louisville Ky in 1917. John O'Neil and Mary Hurney were married on Jan 23 1888 in Louisville KY.
I have a death record for a John H. O'Neil in Ky on Aug 15, 1952 showing his parents as John H. O'Neil Sr and Mary Hurney at the age of 57.
Do you think that the family could have possibly moved to INDIANA???
I don't know if this is the right family but I found a Mildred H. O'Neil born Oct 27, 1899 in Louisville KY to John O'Neil and Mary Hurney and she Married a Charles Waldron on Aug 19, 1917 in INDIANA?
then a Raymond H. O'Neil...son of John O'Neil and Mary Hearny who died in 1949 his spouse was Ella G Jacob whom he married on Jan 1, 1924 in Indiana....and a William J. O'Neil, son of John O'Neil and Mary Herney, born March 29, 1907 in KY marries a Nancy L. Lane on May 5, 1935 in Indiana....and a Loretta O'Neill born in Ky on May 30, 1907 marries a Feb 1, 1929 in Indiana. Clarence J. O'Neil who was born to JH O'Neil and Mary Herney and died in Louisville KY in 1935 listing his spouse as Bertha.
I don't know if any of this makes any sense or it you can see any connections but let me know and I will share more. thanks