i-134 : Affidavit of Support

[GGKamal]

Hello,

I am a naturalized US citizen and I filling i-134 form to sponsor my brother and his wife to travel to US. Few questions, when filling the form:

1. Do I need to enter the Alien Registration Number (Green card number) or will my certificate of naturalization number suffice?

2. Do I need to fill details of Beneficiary's children? They are not accompanying him for the trip and I do not intend to sponsor their visit.

Thank you for taking time to answer my questions.

[jnk]

1. If you are US Citizen then you don't need to write A number.
2. No.

Sample I-134 form link,

https://www.immihelp.com/form-i-134-affidavit-of-support-for-usa-visitors-visa/