Oh, lovely memories! The 'Mother Monkey' song I remember went like this:

There was a mother monkey.
She lived in a big tall tree.
She lived with daddy monkey
as happy as could be.
They had a baby monkey.
Who was their joy and pride
Now listen while I tell you how Tommy monkey died.
He was such a little monkey
with such a curly tail
He went out for a walk one day
and fell into a pail.
When mother monkey saw him
she cried and cried and cried.
Then quickly she fished him out again
But, quietly he died.
Now poor old mother monkey she was so very sad,
she'd lost her little monkey boy,
the only one she had.
So putting on her bonnet she hurried to the shop so fast
and bought another monkey boy exactly like the last.