Most of what I find is a result of looking at familysearch.org . I like it because it's free and extensive.
A) Go to familysearch.org (you may have to do some painless registration)
B) Click on Search (it has a small schematic of a computer screen with a magnifying glass).
C) Enter the first and last name of the person you are searching for.
D) Fill in the rest of the blanks, then press enter.
At first I did searches for my own benefit, but I got more than enough names over time, so now I just try to answer other people's questions.
Good Hunting! If you have any other questions down the road, just ask.
One free source of surname origin info is surnamedb.com Try it for Wolfe or other surnames. There's a type in the Wolfe info which shows the year 066, but they mean 1066. They have about 50,000 surname origins.
You can also try http://www.ancestry.com/name-origin?surname=Wolfe
They have a map of the USA showing concentration of Wolfe by state. Click on England & Wales for concentration of Wolfe by county, a you can try clicking on Scotland too. After the clearances the county population in Scotland shifted.