Funeral services for former US first lady Barbara Bush are planned for 11am Saturday (0200 AEST) at St. Martin's Episcopal Church in Houston, which she and former President George H W Bush regularly attended.
According to a post on the George Bush Presidential Library Foundation website, Barbara Bush will lie in repose from noon to midnight Friday at the church for members of the public wishing to pay respects.
The funeral service Saturday is by invitation only.
Burial will be on the grounds of the Bush library at Texas A&M University in College Station, about 100 miles (161 kms) northwest of Houston.
The couple's 3-year-old daughter, Robin, who died in 1953 of leukemia, also is buried at the site.
President Donald Trump has ordered US flags to be flown at half-staff in honour of the former first lady, who died on Tuesday at the age of 92.
In a proclamation issued Tuesday night, Trump says Americans mourn the loss of "an outstanding and memorable woman of character."
He calls Mrs. Bush "an advocate of the American family" who "lived a life that reminds us always to cherish our relationships with friends, family, and all acquaintances."
The proclamation calls for flags to remain lowered until sunset on the day of her burial.
