Another way of getting the ships list for the Catherine is this...
Google: Ancestry, ships passenger lists - UK to Atlantic Ports.
A list comes up. Its the one second from top referring to Atlantic Ports. Click that. When the page comes up, you don't need to bother with a passenger's name...
Arrival:1822. Bridgeport, Fairfield, Connecticut.
Departure: St Andrews, Scotland.
Ship Name: CATHERINE.
Click search, and what comes up is the names of passengers who were on the ship. Click any one of them (make sure it is the right arrival year) The ships list comes up. Simply look for your ancestor. If not there, click next page for ships list.
Hope you get it okay.