Only two of five Harvard officials subpoenaed by the defense counsel of Cheyney Ryan definitely plan to respond to the subpoena and attend Ryan's trial this morning in Middlesex County Third District Court.

President Pusey, Deans May and Dunlop, and Archibald Cox, Samuel Williston Professor of Law and a frequent university spokesman, have received subpoenas.

A fifth official, James Q. Wilson, professor of Government and former chairman of the Committee on Rights and Resposibilities, has not yet been served his subpoena, but said he plans to be at the trial.

"I was told by Mr. Cox that some documents sent to Cheyney Ryan would be entered as evidence and I would have to testify to their authenticity," Wilson said yesterday.

Ryan was dismissed from the University along with 15 others last December, for his participation in the sit-in at University Hall demanding the promotion of Harvard's painters' helpers. All 15 were told they would be prosecuted if they appeared on the Harvard campus again.

Only Ryan Arrested

During the strike last Spring, Ryan and three others appeared at two rallies in the Yard. Warrants were sworn for all four in July, but thus far only Ryan has been arrested.

Cox did not say whether or not he would attend the trial. "If there is any testimony the judge feels I can give, I'll be available," Cox said.

Daniel Steiner, University general counsel, said that Pusey will be available to give "such testimony as is deem-ed relevant by the judge," but indicated that the statement does not imply a personal appearance. Neither Cox nor Steiner would comment on the possibility of contempt of count charges being pressed on those who fail to show up.

Dean May said he planned to be at the trial, but refused to comment on the case itself. Dunlop, who has been out of town and will not return until tomorrow morning, could not be reached for comment.