From "Tommy's Tunes," 1918:

                              SKIBOO

             Two German officers crossed the Rhine,
                                        Skiboo, skiboo,
             Two German officers crossed the Rhine,
                                        Skiboo, skiboo,
             These German officers crossed the Rhine
             To love the women and taste the wine,
             Skiboo skiboo skiboodley boo ski dam dam dam.


             They came to an inn at the top of a rise...
             A famous French inn of stupendous size....
             They saw a maiden all dimples and sighs....
             The two together said "Damn her eyes!"...

             "Oh, landlord you've a daughter fair.... [3 times]
             With lily-white arms and golden hair. . . .

             "Nein, nein, mein Herr, she's far too young....
             "Nein, nein, mein Herr, she's far too young...."
             "Mais non, mon pere, I'm not so young,
             I've often been kissed by the farmer's son!"...

This is the earliest printing of this song, so far as I have discovered.