No
According to the Mayo Clinic web site the Mayo brothers were Protestant. They worked with Catholic nuns in the beginning in Rochester so I think people assumed they must have been Catholic as well.Also, the name Mayo sounds like the family would be Irish as there is a county Mayo in Ireland. The father of the Mayo brothers immigrated from England, however.
Mayo scissors are named after the Mayo Clinic, but they were not actually invented by the clinic. They were likely designed by one of the Mayo brothers, who were prominent surgeons in the late 19th and early 20th centuries. Mayo scissors are commonly used in surgical settings for cutting sutures and other delicate tissues.
Charles and William
Martin Mayo died in 2013.
Gerald of Mayo died in 731.
Mayo Kaan died in 2002.
Robert Mayo died in 2003.
Nathan Mayo died in 1960.
Christine Mayo died in 1963.
Alfredo Mayo died in 1985.
Eileen Mayo died in 1994.