My transcription by ear is:

Pure, I'm always light-hearted
Not a care in this world have I
I know I'm loved by a daisy
That I couldn't forget if I tried.
She sleeps far away in the mountain
Whar the little bird sings in the trees
Little grave that's covered in iv'ry
Our loved one are waiting for thee

Li'l grave that's in a revin
An' it is not far away
Little Mary's body is sleeping
Her soul's with the angels today
She was only here with with her mother
How happy that poor soul would be
She sleeps now in the little graveyard
Whar the little bird sings in the tree

Little Mary was just fourteen
She's pretty as a queen
Her hair was dark and curly
The sweetest child ever was she
She was only here with her mother
How happy that poor soul would be
She sleeps now in the little graveyard
While the little bird sings in the tree

The day she left her dear mother
That day we shall never forget
The morning she walked though the carline
I fancy I see her there yet
She was only here with her mother
How happy that poor soul would be
She sleeps now in the little graveyard
While the little bird sings in the tree.