Interesting reference to your father. She can technically stop government agencies from collecting it, provided she's not collecting state aid, but unless you go back to court and get the order changed the money will still technically be owed.
Call your local Child Support Enforcment Office and report her. In most states it is illegal to receive child support for children whom do not live with you.
If he has them and refuses to return them you can call the police. If you want him to have legal physical custody the both of you need to go back to court and have the custody order modified and the father's child support order terminated.
The mother needs to notify her area's child support enforcement agency to get the ball rolling. To speak with someone about child support enforcement-related services, call toll-free 866-313-9960.
It's not just a one-two-three thing, but if you are not married then yes, he does have to pay child support, but in order to make him start paying, a trip to court will be necessary. Call your attorney if you have one, or your local city hall if you don't. There should be someone there who can help you out.
You are going to have to file a motion to terminate the support order in the court that issued the original order. Inquire at that court or give the Family Court Clerk down at the County Courthouse a call.
an orphan
A child from an unwed mother is called an illegitimate child. Also called a bastard.
Call your State's child support agency.
Call child support.
Your cousin
Daughter.
A woman who adopts a child becomes that child's "mother".