Sen. Marco Rubio took a moment Thursday night to thank a quiet workforce on Capitol Hill, the Senate pages.

It was the final day working in the chamber for the juniors in high school, at least 16 years old, who help deliver correspondence, transport bills and prepare the chamber, all while attending the U.S. Senate Page School.

Pages are part of the fabric of the Senate, answering phones, delivering messages for staffers and members, holding doors and monitoring floor action. There’s often a handful of pages perched in the well of the chamber whenever the Senate is in session.

A group of navy-suited pages, in their regular seats on the steps next to the Senate Clerk staff, were attentive as the Florida Republican recognized them. He noted that the 115th Congress “had more session days than any [Congress] since 1951.”

None of the pages serving Thursday worked through the whole 115th Congress, as the most recent class began in September and finished up this week. But they’ve served during the longest government shutdown in history and even witnessed senators singing Christmas carols during a vote. They’ve served in close proximity to countless lawmakers who are about to make bids for the White House. 

Rubio received unanimous consent that the pages names be printed in the record, a final souvenir of their time in the Senate.

Will Weiss contributed to this report.