HOUSTON (AP) — Some 1,500 guests are expected Saturday at a private funeral for Barbara Bush at the nation's largest Episcopal church.

First lady Melania Trump, former President Bill Clinton and his wife, Hillary, and former President Barack Obama and his wife, Michelle, are among those expected to attend the by-invitation-only service at St. Martin's Episcopal Church in Houston. Burial will follow at the Bush Library at Texas A&M University, about 100 miles (161 kilometers) northwest of Houston.

The burial site is in a gated plot surrounded by trees and near a creek where the couple's 3-year-old daughter, Robin, who died of leukemia in 1953, is buried.

In a statement released Friday, the family said Barbara Bush had selected son Jeb Bush, the former Florida governor, to deliver a eulogy along with her longtime friend Susan Baker, wife of former Secretary of State James A. Baker III, and historian Jon Meacham, who wrote a 2015 biography of her husband.

Thousands of people on Friday paid respects to Barbara Bush, wife of the nation's 41st president and mother of the nation's 43rd. Bush died Tuesday at her Houston home. She was 92.