HOUSTON -- Dozens of dignitaries are expected to join hundreds of mourners in remembering former Treasury Secretary and U.S. Sen. Lloyd Bentsen at a memorial service Tuesday.

Former President Clinton is to deliver the eulogy at Houston's First Presbyterian Church in a service held after a private graveside service for Bentsen's family.

Bentsen died at his Houston home May 23 at age 85. He had been under a doctor's care and in a wheelchair since suffering two strokes in 1998.

Bentsen represented Texas in Congress for 28 years.

Massachusetts Gov. Michael Dukakis, who chose Bentsen as his running mate when he was the 1988 Democratic presidential candidate, is also to be at the service.

As Clinton's first treasury secretary, serving from 1993 to 1994, Bentsen enjoyed a higher profile than others in that job.

Bentsen flew 50 bomber missions over Europe during World War II. He began his political career in 1946 when he was elected Hidalgo County judge. He served in the U.S. House from 1948 to 1955 and in the Senate from 1971 to 1993. He made an unsuccessful bid for the Democratic presidential nomination in 1976.