Lee Trevino and Jerry Pate, two former U.S. Open champions, will stage an exhibition and clinic with Washington touring pro Lee Elder on the final day of the Lee Elder Celebrity Pro-Am golf tournamaent, Aug. 21-23 at Langston.

Trevino said yes on the same day he failed to sign his scorecard and was disqualified from the PGA championship. Pate agreed several weeks ago to play here.

None of the three will compete for the pro purse in the 54-hole pro-am, as will former Elder champions Ron Cerrudo, Jim Wiechers, Bruce Devlin, Calvin Pette, Gary McCord and defending champion George Johnson. Former Boston Celtic Bill Russell, actor Greg Morris and several soap opera actors also will play.

Henry Seymour, the 5-foot-2 pro at Northern Virginia Golf Center, and 5-1 prize pupil Brenda Baker will play in the same foursome. Baker, a recent graduate of James Madison University, where she played on the golf team, owns the women's course record at Fort Belvoir, 70.

Proceeds help support the college education of recipients of the Lee Elder Scholarship Fund. Tickets may be purchased at the Lanston pro shop or at Lee Elder Enterprises, 1725 K St. NW.