Your priest or deacon who will witness the marriage for the Church will be able to advise you of the documents you need and he or someone from the parish will help you complete the necessary forms. Church documents that are needed: Certificate of Baptism. A copy of your Baptismal Certificate can be obtained from the parish where you were baptized. Indicated on the back of it will be: your freedom to marry in the Catholic Church
the date of your First Communion (if applicable)
the date of your Confirmation (if applicable)
If you’re a non-Catholic Christian, you need: some evidence that you were baptized or dedicated (e.g., a baptismal certificate or letter from your church).
you may be asked for an affidavit from a parent or other adult stating that you are free to be married (e.g., there were no prior marriages).
A letter or Ecclesiastical Decree of Annulment (if applicable)
Civil documents that are needed: Marriage License: A couple intending to marry in New Jersey must obtain a license from the municipality in which the either the woman or man resides.
A Civil Decree of Divorce (if applicable)
The Death Certificate of the former spouse (if applicable)