Ask the person directly
Check public marriage records in the relevant jurisdiction
Search court or civil registry databases where available
Review social media profiles for relationship status or wedding posts
Look for a spouse listed on official documents or public profiles
Search online people-finder or background-check services
Check property, tax, or legal records that may list a spouse
Ask mutual friends or family members
Review obituary, announcement, or wedding registry records
Verify through a licensed private investigator if legally appropriate