Perhaps you should try some spelling variations:
2c william » 2 william, c william, 827 william
21 william » 1 william, 2 william, 11 william
29 1759 » 29 1799
21 1755 » 21 1745, 1 1755, 21 1795
1 1759 » 14 1759, 16 1759, 17 1759

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