From the Wiki article on GHWB:
*As other presidents have done, Bush issued a series of pardons during his last days in office. On December 24, 1992, he granted executive clemency to six former government employees implicated in the Iran-Contra scandal of the late 1980s, most prominently former Secretary of Defense Caspar Weinberger. Weinberger, who had been scheduled to stand trial on January 5, 1993, for charges related to Iran-Contra, was described by Bush as a “true American patriot.”
In addition to Weinberger, Bush pardoned Duane R. Clarridge, Clair E. George, Robert C. McFarlane, Elliott Abrams, and Alan G. Fiers Jr., all of whom had been indicted and/or convicted of charges by an Independent Counsel headed by Lawrence E. Walsh.*
From the Wiki article on Walsh:
*Walsh was responsible for bringing an indictment out of the grand jury against …Weinberger several days prior to the 1992 election which had a material impact on that election, as it carried with it an implication of culpability attached to George H.W. Bush from his role as Vice President in the Reagan administration. According to former Clinton advisor Dick Morris, Bill Clinton himself believed that this indictment was ultimately responsible for his victory, given his slipping poll numbers in the weeks leading up to the election.
President Bush said that "the prosecutions represented a profoundly troubling development in the political and legal climate of our country: the criminalization of policy differences. The proper target is the president, not his subordinates; the proper forum is the voting booth, not the courtroom.”
Senator Bob Dole said that “Lawrence Walsh and his desperate henchmen would have stopped at nothing to validate their reckless $35 million inquisition, even if it meant twisting justice to fit their partisan schemes.”*
There was some idle speculation in 1988-89 that Bush might pardon himself, as I recall, but it never went beyond that.