Former first lady Barbara Bush was laid to rest Saturday in Houston. She was 92.

Attendees included First Lady Melania Trump, Barack and Michelle Obama, and Bill and Hillary Clinton.

Bush’s husband, former president George H.W. Bush, had a subtle way of honoring his late wife.

He wore a pair of socks with books on them to honor his wife’s affinity for literacy and reading.

She was passionate about the issue and raised millions for the cause.