Welcome to G2G forum Laura,
Yes, John had a daughter named Catherine and Catherine was married to Joseph Cantrell.
To see the details, while in John's page look for the following link (Below John's wifes: "Husband of Frances ..., "Husband of Hanna ...)
Father of Catherine (Heath) Cantrell, Mehetabel Heath, David Heath ...
Any underlined name is a link to the page with the information on that person.
I hope this help you to navigate the WikiTree pages representing these persons.