SmithDon't use Jr., Sr., III, etc.
Smith, William F
If you don't find a name, try phonetic spellings or French-English conversions. Some enlisted under an assumed name, changed their name afer the war, or were adopted. If we know it, it will show up in the query response.
Special cases where you need to use a wildcard (%):
Apostrophe - for names beginning with O', search for O%Neil a comma then the given name
Trailing vowel - for variations like Clark and Clarke, use Clark% a comma then the given name
To protect our data, the query will return a maximum of 50 results; be as specific as possible.
Finally, PLEASE don't tell me I misspelled your ancestors name - we are working with historical data - things change after 150+ years.