Hello ChicagoJax,
Welcome to Rootschat.
I believe that you are correct in the names of Jane Wisnom’s 3 sons.
It is common amongst Irish families to include the mother’s surname as a middle name for at least one of the children so your grandfather may well have been called John Wisnom Ridges. They also commonly name their sons after the father and both grandfathers.
Hugh Ridges and Jane Wisnom married on 3 April 1879 in Glenarm, Antrim. The marriage was registered in Larne.
The image of the marriage record has Hugh as a farmer as was his father, John Ridges. You can view the marriage image at the free site irishgenealogy.ie
After the birth of their first son William, they emigrated to Illinois, USA.
My connection with this family is through Sarah Jane the wife of their Illinois born son, also a Hugh. Sarah Jane and Hugh married in San Mateo, California in 1905. They brought their family up in the San Mateo area.
I hope the above information helps you with your research.
Regards,
KiwiRose.