JACKSON, MISS. — Two charities have poured $2.6 million into efforts to pass a ballot initiative that aims to guarantee public school funding in the state constitution. But where did that money come from?

Records reviewed by The Associated Press show at least $1.6 million of it can be pinpointed to two sources who have long been supporters of the state’s public schools: the W.K. Kellogg Foundation and former Secretary of State Dick Molpus. An unknown amount also was donated by former Netscape and FedEx executive Jim Barksdale.