I don't really think they have real names. They are just fill-ins for nameless victims or demonstrations.
plaintiffs in roe vs. wade These are not their real names. John & Jane [ or Mary Doe ] are used to protect people's privacy , and are often used when real names are not wishing to be disclosed.
John Rutledge had five children with his wife, Mary. Their names were John Rutledge Jr., Edward Rutledge, Sarah Rutledge, Mary Rutledge, and Caroline Rutledge.
icomposer real Mary
their names were elizabeth Mary and esther
Mary Khavere
John and Mary Grayson
William Shakespeare's parents names are Mary and John Shakespeare
If the names are like, "John Smith -and- Mary Smith", then they both have to sign the title. If the names are like, "John Smith -or- Mary Smith", then one signature is needed, and it can be by either one.
He was the son of the Reverend John Hancock and Mary Hawke Thaxter
John Steinbeck had three sister, Mary, Beth and Esther.
John and Mary are both "Bible" names. This has a lot to do with why they are so common. Other names like Paul, Peter, Daniel, Michael, and Anne to name a few are also very common for this same reason.
His mother Mary and John his disciple