In principle yes, but as always, the devil is in the details.
First of all, what kind of information is this? Is it just static content on the page or is it located in form fields? If the former, is it consistent from page to page (ie, always appears on the same spot on the page or in the same textual context)? If it's not in form fields it will be much more difficult to identify and extract using a script.
If you can share some sample pages (either via email or something like Dropbox or Google Drive) I could tell you if I think it's doable or not.