Just came across this post, so hope it's not too late to answer!
My grandmother Kate (Catherine) Curley was born in a farm house in West Dykebar, Paisley in 1902. Her father Patrick Curley born in Doocastle, Co Mayo was a Ploughman on the farm in the 1911 census.
In the 1901 census in Great Hamilton St., Paisley, the boarder staying with Patrick Curley and his wife is Patrick Killolan, born Co Mayo (could be Killoran), age 24.
I think the Marron's, or any other way you wish to spell the name, were related to the Curley's in Doocastle. The reason for this being strong evidence! A lot of the above Patrick Curley's nieces and nephews all born in Doocastle, Mayo, gave the final destination when sailing to America as being Cooke, Illinois. Also had some cousins by the looks of it called Marron, sailing on the same ship,. And to stay with their Uncle Mr. Marron.
You can find this on The Ellis Island website, think it's 1915 with the keywords Kate Curley.
Hope this helps somebody out there.
Ray