Matthew Loraditch, a page in the 2001-2002 class, told ABC News he and other pages were warned about Foley by a supervisor in the House Clerk's office.
Loraditch, the president of the Page Alumni Association, said the pages were told "don't get too wrapped up in him being too nice to you and all that kind of stuff."
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Staff members at the House Clerk's office did not return calls seeking comment.
Some of the sexually explicit instant messages that led to Foley's abrupt resignation Friday were sent to pages in Loraditch's class.
Pages report to either Republican or Democratic supervisors, depending on the political party of the member of Congress who nominate them for the page program.
Several Democratic pages tell ABC News they received no such warnings about Foley.
Loraditch says that some of the pages who "interacted" with Foley were hesitant to report his behavior because "members of Congress, they've got the power." Many of the pages were hoping for careers in politics and feared Foley might seek retribution.
Loraditch runs the alumni association for the U.S. House Page Program, and he is deeply concerned about the future effects this scandal could have on a program that he sees as a valuable educational experience for teens.