A charity headed by star Harvard University professor Henry Louis Gates Jr. is filing an amended 2007 report to the Internal Revenue Service because $11,000 it paid to foundation officers as compensation was mischaracterized as being for research grants.

Questions about Inkwell Foundation emerged over the weekend, part of a tsunami of attention Gates has received since July 16, when he was arrested at his home by a police officer responding to a report about a possible burglary in progress. The incident ignited a national debate over racial profiling, further magnified when President Obama jumped into it....