Poor: very low income. compared to many. He usually does not or cannot own property. His home is usually of lesser quality, sometimes due to uncaring landlords who may also be the Poor person's employer.
Other Relations: You were raised by a distant relative such as a Great Aunt/Uncle, Great Grandparent, Cousins or someone that claims to be a relation but has suspicious origins.
Civil Strife! Conflict broke out during your youth causing social upheaval, your family was involved in the conflict (Work with your DM to detirmine your families involvement)