Here is my play list of lullabies and songs I sing at night to the boys. In no particular order.

Daisy Daisy
Twinkle Twinkle Little Star
Rock-a-bye Baby
London Bridge*
Sing a song of sixpence...
Oh my Darling Clementine
Amazing Grace
Where O Where has my little dog gone?
How much is that Puppy...
Are You Sleeping?
Row Row Your Boat
Hush Little Baby
The Ants go marching...

That's all I can think of. Of course a few of these songs have been modified to include names like Joshua and Elliot, and others have been changed to have some historical relevance*. Thus, Rusty doesn't sing anymore.