Perhaps you should try some spelling variations:
2c william » 2 william, c william, 827 william
21 william » 2 william, 11 william, 101 william
51 william » 11 william, 13 william, 2 william
21 1759 » 29 1759, 21 1755, 21 1799

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: %22pitt%((2c william) OR (((((21 william) OR (((51 william) OR (5 william))))) OR (1 william)))) %21 1759-1806%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22pitt%((2c william) or (((((21 william) or (((51 william) OR (5 william))))) or (1 william)))) %21 1759-1806%22".
• Adding a wildcard symbol may retrieve word variants: %22pitt%((2c william) or (((((21 william) or (((51 william) OR (5 william))))) or (1 william)))) %21 1759-1806%22*.