Hi Jeff, and welcome to Rootschat.
Your query is just a bit vague. Scott is a very common surname indeed; 9th commonest in Scotland in 1990, when the Registrar General published a booklet Personal Names in Scotland.
Also, in the 17th century there are huge gaps in the records, especially in rural areas.
If you could be a bit more specific in the names, dates and parishes of the people you are looking for, we might be able to help.