Charles's photo is shown age-progressed to 39 years and William's photo is shown age-progressed to 37 years. Their father's photo has been age progressed to 78 years. The inset photos are the original photos of the children and their father. Charles and William were allegedly abducted by their father, Charles Vosseler. A federal warrant for Unlawful Flight to Avoid Prosecution was issued for Charles on April 3, 1987. The children may go by the names James and Martin. They may be using the alias last names Wilson, Foster, or Amidon. The father may use the nickname Charlie or the middle name Malcolm. CAUTION IS ADVISED.