I learned this in grade school too and never forgot it and sang it to my children too . I remember it with slight differences .

Witches on brooms and cats and bats
Ride round after dark in their funny black hats
How queer are the noises on Halloween night
And then thru the window I see a strange sight

Bright stary eyes and a big red nose
I sit close to mother and curl up my toes
It’s old Jack O Lantern he peeked in the room
A worse looking sight than a witch on a broom

Halloween night is lots of fun but somehow I wish it was over and done
Tis Momma ( this is stretched out) she tucks me in bed
And then I won’t have nothing to dread.