Is it possible for Military Personnel Disability Benefits Plan to also qualify their children if they were also have been affected by a chemical exposure?
If you were on active duty in Vietnam, Thailand or the Korean Demilitarized Zone and you were exposed to specific chemicals during this time, and if as a result your child has spina bifida or other birth defects, then your child may be eligible for disability benefits
May I know if this additional  information will aid me in substantiating my claim?
Not really. But you can upload evidence to support your initial disability claim.