Both of my husbands children quit school when they were 15 years old are we required to still pay child support for either of them

Normally, yes, until at least age 18.

What does the child support order say?

Yes you still have to pay. The only time it would stop before the age of majority is if emancipation were to occur.

Do you pay if they have a job

do you pay if they have a job

Yes. You pay until the age of majority or if they get adopted out. If they are living independent from the custodial parent then take it back to court. Otherwise pay and keep paying to stay out of trouble till a court says its over.