More than half-a-million Missourians who claimed the Child Tax Credit on their 2002 income tax returns will soon be receiving checks from Uncle Sam. 512,000 Missourians are eligible for the advance payment checks that are part of the economic stimulus package signed by President Bush. Bill Barksdale with the Internal Revenue Service in St. Louis says filers will receive up to $400 per eligible child, bringing to $1,000 the maximum credit. And, they won’t have to do any paperwork to get those checks. Checks will be sent out starting in July. Principal mailing dates are July 25th, August 1st, and August 8th.