You’re at the Application Assistance station. In Part 9 of the N-400 Form, it asks for information about children. The participant you’re helping has 3 children. His 1st child is age 31, born out of wedlock and lives abroad. The applicant never married the mom. The 2nd child is a 25 yr old step-child with his 1st wife. The 3rd child is a 16 yr old LPR who was born in wedlock to the applicant’s 2nd wife and lives with both parents here in the U.S.