Citizenship process

For my citizenship test and interview I have to take the following documentation:

• My Green Card
• Government issued ID
• Passport and travel documents (expired and current) 
• Divorce Decree - certified
• Marriage License - certified
• Proof of my husbands citizenship ~ birth certificate (certified) ~ passport
• IRS Form 1722 showing proof that I paid taxes for the past 5 years
• Certified copy of my son's birth certificate and his passport

My friend's husband had to bring the following to his interview and test:

• Green Card