Perhaps you should try some spelling variations:
2c william » 2 william, c william, 23 william
21 william » 2 william, 51 william, 23 william
11 william » 13 william, 15 william, 51 william
21 1799 » 11 1799, 29 1799, 1 1799
31 1799 » 11 1799

Try widening your search to All Fields.

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 (11 william))) OR (1 william)))) %((21 1799) OR (31 1799))-1806%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22pitt%((2c william) or (((((21 william) or (11 william))) or (1 william)))) %((21 1799) OR (31 1799))-1806%22".
• Adding a wildcard symbol may retrieve word variants: %22pitt%((2c william) or (((((21 william) or (11 william))) or (1 william)))) %((21 1799) OR (31 1799))-1806%22*.