Portrait of the 113th Congress

There will be over 90 new members of Congress sworn into office on Thursday — a diverse group of men, women, straight, gay, married, single, well-known and unknown.

The freshman class of 2013 includes an animal vet (Republican Ted YohoTheodore (Ted) Scott YohoDemocrats fear US already lost COVID-19 battle House Republicans urge White House to support TSA giving travelers temperature checks GOP lawmaker cites 'herd immunity' when asked why he's without face mask MORE of Florida), a reindeer farmer (Republican Kerry BentivolioKerry BentivolioIndiana Republican: Leaders duped me Reindeer farmer saves 'cromnibus' with yes vote High drama as .1T spending package advances by one vote MORE of Michigan), a scion of a legendary family (Democrat Joseph Kennedy of Massachusetts), a famous twin (Democrat Joaquin Castro of Texas, whose brother gave the keynote address at the Democratic National Convention), and several unfamiliar faces that will be popping up on C-SPAN in the weeks to come.

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Lawmakers will take the oath of office at noon, as constitutionally mandated.

In the Senate, after the official swearing-in, Vice President Biden will host ceremonial reenactments for individual senators in the Old Senate Chamber.

Joining the 12 newly elected members of the upper chamber — three Republicans, eight Democrats and one Independent — will be Republican Tim ScottTimothy (Tim) Eugene ScottTim Scott says he's talking with House Democrats about reviving police reform bill Public unites, Congress gridlocks — there's a better way Trump sealed his own fate MORE, the South Carolina House member who was appointed to fill the seat of Sen. Jim DeMint (R-S.C.), who resigned this month.

In the House, there will be a roll call vote at 11 a.m. for new members and the swearing-in at noon, followed by a ceremonial swearing-in in the Rayburn House Office building at 3 p.m., which is where new members will get their photo taken with Speaker John BoehnerJohn Andrew BoehnerLott says lobbying firm cut ties to prevent him from taking clients Lobbying firm cuts ties to Trent Lott amid national anti-racism protests Bush, Romney won't support Trump reelection: NYT MORE (R-Ohio).

The lower chamber will gain 82 new lawmakers on Thursday: 35 Republicans and 47 Democrats.

This year’s Republican freshman class is much smaller than the legendary class of 2010, which caused many headaches for BoehnerJohn Andrew BoehnerLott says lobbying firm cut ties to prevent him from taking clients Lobbying firm cuts ties to Trent Lott amid national anti-racism protests Bush, Romney won't support Trump reelection: NYT MORE.

Republican Luke Messer of Indiana, who was elected president of the incoming freshmen, said he found a way to rein in his colleagues.

“I got a lot of accolades from classmates because at our first meeting I established a rule where everyone could talk but no one could talk more than two minutes, so our first meeting took 18 minutes and everybody was very happy,” he said this past weekend on C-SPAN’s “Newsmakers.”

The lower chamber also is losing some of its best-known members after Thursday: Reps. Barney Frank (D-Mass.), Ron Paul (R-Texas) and Dennis Kucinich (D-Ohio) are leaving.

But there will be some familiar faces returning to Capitol Hill — nine incoming House members have served in the lower chamber before: Republican Matt SalmonMatthew (Matt) James SalmonCOVID-19's class divide creates new political risks Arizona voters like Kyl but few think he'll stick around Former Sen. Jon Kyl to replace McCain in Senate MORE of Arizona, Democrat Ann KirkpatrickAnn KirkpatrickHouse Democrats jam GOP with coronavirus bill Eleventh Democratic presidential debate to be held in Phoenix Arizona Democrat to get treatment for alcohol dependence after suffering fall MORE of Arizona, Democrat Alan GraysonAlan Mark GraysonFlorida's Darren Soto fends off Dem challenge from Alan Grayson Live results: Arizona and Florida hold primaries The Hill's Morning Report: Frustration mounts as Republicans blow up tax message MORE of Florida, Democrat Bill FosterGeorge (Bill) William FosterFormer Obama Ebola czar Ron Klain says White House's bad decisions have put US behind many other nations on COVID-19; Fears of virus reemergence intensify Overnight Defense: Army now willing to rename bases named after Confederates | Dems demand answers on 'unfathomable' nuke testing discussions | Pentagon confirms death of north African al Qaeda leader Top Democrats demand answers on Trump administration's 'unfathomable' consideration of nuclear testing MORE of Illinois, Democrat Rick Nolan of Minnesota, Democrat Carol Shea-Porter of New Hampshire, Democrat Dan Maffei of New York, Democrat Dina Titus of Nevada and Texas Republican Steve StockmanStephen (Steve) Ernest StockmanInmates break windows, set fires in riot at Kansas prison Wife of imprisoned former congressman cites COVID-19 risk in plea to Trump for husband's freedom Consequential GOP class of 1994 all but disappears MORE.

Shea-Porter said knowing fellow lawmakers was one of the biggest advantages of her previous service.

"The advantages of two terms already served are experience, perspective and established relationships. I really can't see any disadvantages!" she told The Hill in a statement.

And some of the incoming freshmen have unfamiliar faces but familiar last names.

Joseph Kennedy of Massachusetts returns the Kennedy name to Congress after a four-year absence and replaces another famous name in the process: Barney Frank.

Democrat Donald Payne Jr. of New Jersey took the seat of his father: the late Rep. Donald Payne (D-N.J.).

And Democrat Dan Kildee of Michigan replaces his uncle, retiring Rep. Dale Kildee (D-Mich.).

Several former congressional aides are joining their former bosses as colleagues: Messer worked for three former members and for the House Oversight and Government Reform Committee; Republican Rodney Davis of Illinois worked for longtime Rep. John Shimkus (R-Ill.); and Republican Andy BarrAndy BarrThe Hill's Campaign Report: The political heavyweights in Tuesday's primary fights Democrat Josh Hicks wins Kentucky primary to challenge Andy Barr McGrath fends off Booker to win Kentucky Senate primary MORE of Kentucky worked for former Rep. Jim Talent (R-Mo.).

In the Senate, four women were added to the ranks, making a total of 20 in the upper chamber — four Republicans and 16 Democrats  — a new record.

Democrat Elizabeth WarrenElizabeth WarrenThe Hill's Campaign Report: Democratic Unity Taskforce unveils party platform recommendations Progressive activist Ady Barkan endorses Biden, urges him to pick Warren as VP Congress must act now to fix a Social Security COVID-19 glitch and expand, not cut, benefits MORE comes in as one of the most well-known names. Her Senate race, in which she defeated incumbent Sen. Scott Brown (R-Mass.), garnered national attention. Ironically, Warren could end up working with Brown anyway. Fellow Massachusetts Sen. John KerryJohn Forbes KerryOVERNIGHT ENERGY: Sanders-Biden climate task force calls for carbon-free power by 2035 | Park Police did not record radio transmissions during June 1 sweep of White House protesters | Court upholds protections for Yellowstone grizzly bears Biden-Sanders 'unity task force' rolls out platform recommendations Sanders-Biden climate task force calls for carbon-free power by 2035 MORE (D-Mass.) is President Obama’s nominee for secretary of State and Brown is seen as a strong contender for his seat should Kerry be confirmed and Brown decide to run.

Democrat Tammy BaldwinTammy Suzanne BaldwinBiden campaign adds staff in three battleground states Clinton, Buttigieg among Democrats set to hold virtual events for Biden Warren top choice for VP for some Black progressives MORE of Wisconsin is the first openly gay person elected to the upper chamber, although she has downplayed the historic aspect of her election.

“I didn’t run to make history. I ran to make a difference,” she wrote on her Twitter account on election night.

Six of the newly elected senators are from the House, meaning a majority of the upper chamber will be made up of former members from the lower chamber: Fifty-two of them have previous House service, according to the Senate Historical Office.

Those include Arizona Republican Jeff FlakeJeffrey (Jeff) Lane FlakeCheney clashes with Trump Sessions-Tuberville Senate runoff heats up in Alabama GOP lawmakers stick to Trump amid new criticism MORE and Democrats Chris MurphyChristopher (Chris) Scott MurphyConnecticut senators call for Subway to ban open carry of firearms Democrats optimistic about chances of winning Senate Gridlock mires chances of police reform deal MORE of Connecticut, Mazie HironoMazie Keiko HironoIf only woke protesters knew how close they were to meaningful police reform Hillicon Valley: Facebook takes down 'boogaloo' network after pressure | Election security measure pulled from Senate bill | FCC officially designating Huawei, ZTE as threats Senate Democrats call on Facebook to crack down on white supremacists MORE of Hawaii, Joe DonnellyJoseph (Joe) Simon DonnellyEx-Sen. Joe Donnelly endorses Biden Lobbying world 70 former senators propose bipartisan caucus for incumbents MORE of Indiana, Martin HeinrichMartin Trevor HeinrichThe Hill's Coronavirus Report: Rep. Rodney Davis says most important thing White House can do on COVID-19 is give consistent messaging; US new cases surpass 50k for first time Overnight Defense: Navy won't reinstate fired captain | Dems probe use of federal officers in DC | Air Force appoints woman as top noncommissioned officer Dems request watchdog probe use of federal law enforcement in DC during Floyd protests MORE of New Mexico, and Baldwin.

Of the nearly 2,000 men and women who have served in the Senate since its inception in 1789, 31 percent — a total of 606 — first served in the House, according to an analysis from the University of Minnesota.

There are some advantages to having previous congressional experience.

“I know where the bathrooms are,” Flake joked to The Hill.

Flake was referring to a common problem for freshmen — the Capital complex is a maze of hallways, staircases and tunnels that rivals Hogwarts. Most incoming members spend their first few weeks simply trying to learn their way around.

Turning serious, Flake noted, “It helps to have some experience, but the Senate is a different body and there’s a lot to learn.”

But he got an early start, crossing through the Capitol’s Statuary Hall and ornate rotunda over the past few weeks to attend the Senate Republican Conference’s weekly lunches.

“It’s better food over there,” Flake said. “I know that.”