That's An Irish Lullaby tab by Bing Crosby

Verse 1:

e|---------------------------------------------------|
B|---------------1-3-1---------------------0-1-------|
G|---0-------0-3-------0-3-3-0-------0-3-3---------0-|
D|-----3-1-3-------------------3-1-3-----------3-3---|
A|---------------------------------------------------|
E|---------------------------------------------------|

e|---------------------------------------------------|
B|-----------------------1-3-1---------1-3-4-3-1-----|
G|-------0-------0-3-0-3-------0-3-0-3-----------3-0-|
D|-3-1-3---3-1-3-------------------------------------|
A|---------------------------------------------------|
E|---------------------------------------------------|

e|---------------------------------------------------|
B|---------------------------------------------------|
G|---0-----0-----------------------------------------|
D|-1---3-3---3-4-------------------------------------|
A|---------------------------------------------------|
E|---------------------------------------------------|

Chorus:

e|---------------------------------------------------|
B|---------------1-0-1-3-4-4-3-4-1-----1-------------|
G|---0-------0-3-------------------3-0-------0-----0-|
D|-----3-1-3-----------------------------3-3---3-4---|
A|---------------------------------------------------|
E|---------------------------------------------------|

e|---------------------------------------------------|
B|-----------1-0-1-3-4-4-3-4-1-----------------------|
G|-------0-3-------------------3-0-----0-------------|
D|-3-1-3---------------------------3-1---1-1-1-1-----|
A|---------------------------------------------------|
E|---------------------------------------------------|

Verse 2:

e|---------------------------------------------------|
B|---------------1-3-1---------------------0-1-------|
G|---0-------0-3-------0-3-3-0-------0-3-3---------0-|
D|-----3-1-3-------------------3-1-3-----------3-3---|
A|---------------------------------------------------|
E|---------------------------------------------------|

e|---------------------------------------------------|
B|-----------------------1-3-1---------1-3-4-3-1-----|
G|-------0-------0-3-0-3-------0-3-0-3-----------3-0-|
D|-3-1-3---3-1-3-------------------------------------|
A|---------------------------------------------------|
E|---------------------------------------------------|

e|---------------------------------------------------|
B|---------------------------------------------------|
G|---0-----0-----------------------------------------|
D|-1---3-3---3-4-------------------------------------|
A|---------------------------------------------------|
E|---------------------------------------------------|

Chorus:

e|---------------------------------------------------|
B|---------------1-0-1-3-4-4-3-4-1-----1-------------|
G|---0-------0-3-------------------3-0-------0-----0-|
D|-----3-1-3-----------------------------3-3---3-4---|
A|---------------------------------------------------|
E|---------------------------------------------------|

e|---------------------------------------------------|
B|-----------1-0-1-3-4-4-3-4-1-----------------------|
G|-------0-3-------------------3-0-----0-------------|
D|-3-1-3---------------------------3-1---1-1-1-1-----|
A|---------------------------------------------------|
E|---------------------------------------------------|

Chorus:

e|---------------------------------------------------|
B|---------------1-0-1-3-4-4-3-4-1-----1-------------|
G|---0-------0-3-------------------3-0-------0-----0-|
D|-----3-1-3-----------------------------3-3---3-4---|
A|---------------------------------------------------|
E|---------------------------------------------------|

e|---------------------------------------------------|
B|-----------1-0-1-3-4-4-3-4-1---------1-4-4-3-4-----|
G|-------0-3-------------------3-0-0-3---------------|
D|-3-1-3---------------------------------------------|
A|---------------------------------------------------|
E|---------------------------------------------------|