How to fill out 709 form for a joint spousal gift with 30k check to minor's account? How many 709 forms, 1 or 2? How to answer line 17.? Should I fill out Sch. A? How?

The instructions for the form 709 are difficult to follow, especially for a joint gift from spouses.
It was just one check from both of us.
Do I have to fill out 709 for each of spouses?
Thank you!!!