Indiana marriage records show Robert Craig, b. 23 Jan 1872 in England, married Mabel Louise O’Halloran , b. 29 July 1892 in Dublin Ireland. The marriage took place 25 August 1913 in Marion Co. IN.
Her parents are shown as John E. and Agnes Eva O’Halloran, and his parents are shown as Archibald and Ann Craig.
I wonder if Mabel Craig’s son’s name could have been a bad misspelling of Archibald.
I found a Robert Craig, b. England 1870, living in Denver CO in 1930.He was living alone and indicated he was widowed.I don't know if this could be Mabel's husband.I could not find any further information.