Perhaps you should try some spelling variations:
2c william » 2 william, c william, 21 william
21 1759 » 29 1759, 21 1799, 2 1759
21 1755 » 21 1745, 1 1755, 22 1755
21 1795 » 21 1745, 25 1795, 21 1798
1 1759 » 14 1759, 16 1759, 17 1759

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 %((((21 1759) OR (1 1759))) OR (((21 1755) OR (21 1795))))-1806%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22pitt%2c william %((((21 1759) or (1 1759))) or (((21 1755) OR (21 1795))))-1806%22".
• Adding a wildcard symbol may retrieve word variants: %22pitt%2c william %((((21 1759) or (1 1759))) or (((21 1755) OR (21 1795))))-1806%22*.