yep he was
here is link with speakers listed
http://www.nixonfoundation.org/Research_Center/Nixons/RichardNixonFuneral.shtml
CLinton, as SITTING President was the only one to speak.
Carter, Ford, Reagan , and H.W. Bush all attended and did not speak. Ford was Nixon's VP and even at that he did not Speak.
Precedence is such then that ONLY the sitting President speaks -- CLINTON/CARTER SHUT THE KERRY UP!!!!!
http://www.nixonfoundation.org/Research_Center/Nixons/images/RichardNixonFuneral-150.jpg
link to program of President Nixons funeral