An eclectic cohort will join the first lady: emergency medical workers, service members and faces of Mr. Trump’s tax and immigration overhaul narratives. Here is a preview of who you’ll see:
Official and unofficial emergency responders
David Dahlberg, a fire prevention technician, who saved 62 children and staff members from a blaze-encircled summer camp in July during the wildfires in Southern California.
Ashlee Leppert, an aviation electronics technician in the Coast Guard, who rescued dozens from hurricane ruins. According to the White House, Ms. Leppert operated a helicopter basket that hoisted to safety a woman who was clutching four children at once.
Jon Bridgers, the founder of the “Cajun Navy,” a nonprofit rescue team that served in Texas during Hurricane Harvey. In 2016, Mr. Bridgers founded the organization in response to flooding in Louisiana and continues to collect donations for areas still devastated.
Service members, and one of their supporters
Cpl. Matthew Bradford, now retired, who lost his sight and both legs when he stepped on an improvised explosive device in 2007 during a deployment to Iraq. After extensive treatment, Mr. Bradford became the first blind double-amputee to re-enlist in the Marine Corps.
Preston Sharp, a young boy who has organized the placement of more than 40,000 American flags and red carnations on soldiers’ graves through a campaign he calls the Flag and Flower Challenge. Preston’s efforts began in 2015 after a visit to the grave of his grandfather, a veteran, when he noticed other veterans’ graves that were undecorated.
Economic success stories in Ohio
Steve Staub and Sandy Keplinger, who are the leaders of a Dayton, Ohio, contract manufacturing company focused on metal fabrication. They founded Staub Manufacturing Solutions two decades ago. Over the past year, the company acquired a new building and saw a 60 percent increase in employees — from 23 to 37. Crediting the passage of the tax law, the company gave large Christmas bonuses to all employees.
Corey Adams, a welder at Staub Manufacturing, who, according to the White House, bought his first home last year with his wife. They will put savings from the recent tax overhaul toward their daughters’ future education.
A spotlight on gang violence and border security
Four parents whose daughters, the authorities say, were most likely killed by members of the MS-13 gang: Elizabeth Alvarado and Robert Mickens, who lost Nisa Mickens, 15; and Evelyn Rodriguez and Freddy Cuevas, who lost Kayla Cuevas, 16. The teenagers were killed in 2016 on Long Island.
Celestino “CJ” Martinez, a supervisory special agent in Immigration and Customs Enforcement’s Homeland Security Investigations unit, who functions as a gang hunter. According to the White House, Mr. Martinez’s investigations have led to more than 100 arrests of MS-13 gang members.