In those days, "brat" was the general name for little folks.
His son, a brat of about fifteen, was accustomed to ride over to visit us.
There was a brat for you who laughed at words she ought not to understand!
And 'twas easy to see what she'd been through with Cousin Harriet and that brat.
"I know it, dad; but I'll try to get along without it," replied the brat.