[HuntsvilleTxVeteran]

http://www.twainquotes.com/quotesatoz.html

A lot of his quotes and newspaper statements are at above URL.

[Schweinhund]

I found this one:

The average American may not know who his grandfather was. But the American was, however, one degree better off than the average Frenchman who, as a rule, was in considerable doubt as to who his father was.

- quoted in "Stories of Mark Twain," C. D. Williard, Pacific Outlook, 4/30/1910