Perhaps you should try some spelling variations:
2c william » 2 william, 21 william, 23 william
c william » c williams, 5 william, 2 william
29 1759 » 29 1799
21 1755 » 21 1745, 22 1755
21 1795 » 21 1745, 25 1795, 21 1798
1 1755 » 16 1755, 13 1755, _ 1755

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 (c william)) %((29 1759) OR (((((21 1755) OR (21 1795))) OR (1 1755))))-1806%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22pitt%((2c william) or (c william)) %((29 1759) or (((((21 1755) OR (21 1795))) or (1 1755))))-1806%22".
• Adding a wildcard symbol may retrieve word variants: %22pitt%((2c william) or (c william)) %((29 1759) or (((((21 1755) OR (21 1795))) or (1 1755))))-1806%22*.