Less than 24 hours after an 18-year-old gunman, Salvador Ramos, entered Robb Elementary School in Uvalde, Texas, and killed 21 people, including at least 19 children and two teachers, some of the victims have begun to be identified.

An educator who devoted nearly two decades to teaching. A 10-year-old boy who was quick to crack a joke. A fourth-grader who was learning to play football with his grandfather.

Here's what we know so far about the victims.

Eva Mireles, 44

Mireles, a fourth-grade teacher at Robb Elementary School, has been identified as one of the victims by family members. Mireles was a teacher for 17 years and married to Ruben Ruiz, a police officer with the Uvalde school district. She also leaves behind a daughter and three pets.

A mother of one of Mireles's former third-grade students described her as a caring and attentive educator to her daughter Gabby, who is now 23.

“My daughter has Down syndrome, and she was one of the first students at that time to be included in a regular classroom,” Audrey Garcia told the Washington Post. “Ms. Mireles always went above and beyond. She never saw Gabby as having less potential than any of the other students.”

Irma Garcia, 48

Garcia, a fourth-grade teacher, was also killed, her son, Christian Garcia, confirmed to NBC. Garcia was an educator for 23 years and a co-teacher with Mireles. She has four children of her own and was married for 24 years to her husband, Joe.

"I love to BBQ with my husband, listen to music, and take country cruises to Concan," Garcia wrote on her teacher's introduction page.

Xavier Lopez, 10

Lopez, a fourth-grader at Robb Elementary School, was among those killed, his mother, Felicha Martinez, told the outlet. Lopez, who was always cracking jokes with his family, had a penchant for dancing.

"He was funny, never serious and his smile,” Martinez said. “That smile I will never forget. It would always cheer anyone up.”

Martinez was at the school just hours prior to the deadly event to attend her son's honor roll ceremony.

Jose Flores, 10

Flores, a fourth-grader at Robb Elementary School, was among those killed Tuesday, according to his uncle, Christopher Salazar. Flores "loved going to school" and "to laugh and have fun," Salazar told the outlet. He was an honor roll student.

Amerie Jo Garza, 10

Garza, a fourth-grader at Robb Elementary School, is among the victims.

"Thank you everyone for the prayers and help trying to find my baby. She’s been found. My little love is now flying high with the angels above. Please don’t take a second for granted. Hug your family. Tell them you love them. I love you Amerie jo. Watch over your baby brother for me," Angel Garza, her father, wrote on Facebook.

Uziyah Garcia, 8

Garcia was among the victims and described as "the sweetest little boy that I've ever known," his grandfather, Manny Renfro, told the Associated Press. Garcia's grandfather was teaching him how to play football.

“We started throwing the football together, and I was teaching him pass patterns. Such a fast little boy and he could catch a ball so good,” Renfro said.

Annabell Guadalupe Rodriguez, 10

Rodriguez, a third-grader at Robb Elementary School, was one of the victims, her father confirmed to KHOU 11. She was in the same classroom as her cousin, who was also killed, the family said. The cousin has not been identified.

Ellie Lugo-Garcia, 10

Lugo was identified as a victim of the shooting on her parents' social media accounts.

Eliahana Cruz Torres, 10

Torres, a fourth grader at Robb Elementary School who was unaccounted for in the hours immediately after the shooting, was identified as a victim by her family to Fox News.

Jacklyn Cazares, 10

Cazares, who was in the same fourth grade class as Rodriguez, was among the students killed, as reported by ABC News.

Alithia Ramirez, 10

Ramirez was identified as a victim by a family member.

"She was a very talented little girl," her grandmother Rosa Maria Ramirez told ABC News. "She loved to draw."

Makenna Lee Elrod, 10

Elrod was among the victims of Tuesday's shooting, her family confirmed.

"Please pray for our family and remember Makenna. She was beautiful, funny, smart, and amazing. She had the biggest heart and loved her family and friends so much. Her smile would light up a room," wrote Allison McCullough, Elrod's aunt.

Elrod loved a variety of sports from softball to gymnastics to dance.

Rojelio Torres, 10

Torres, a fourth grader, was killed Tuesday. He was a "very smart and loving child," his mother, Eva Dulia Orta, told ABC.

Tess Marie Mata, 10

Mata was identified by her family as a victim of Tuesday's shooting.

"My precious angel you are loved so deeply. In my eyes you are not a victim but a survivor. I love you always and past forever baby sister, may your wings soar higher then you could ever dream. Till we meet again Tess Marie, love your big sissy," Faith Mata, her sister, tweeted.

Mata was hoping her family would take a trip to Disney World next year.

Nevaeh Bravo, 10

Bravo is also among the victims, her cousin confirmed on Twitter.

"Unfortunately my beautiful Nevaeh was one of the many victims from todays tragedy. Thank you for the support and help. Rest in peace my sweet girl, you didn’t deserve this," she wrote.

Alexandria "Lexi" Rubio, 10

Rubio's parents had attended an honor ceremony at the school just hours before her death.

“We told her we loved her and would pick her up after school,” her mother, Kimberly Rubio, wrote on Facebook. “We had no idea this was goodbye.”

Rubio was a member of the girls' basketball team, the Spurs, which won a local championship back in March.

Jailah Nicole Silguero, 10

Silguero was among the victims, according to an obituary posted online by Hillcrest Memorial Funeral Home.

Layla Salazar, 10

Salazar was among those killed in the shooting Tuesday, her father, Vincent Salazar, said.

"Yesterday we lost our heart our whole world,” Salazar wrote on Facebook. “We Love you Baby girl.”

Jayce Luevanos, 10

Luevanos was among those slain Tuesday, his grandfather, Carmelo Quiroz, confirmed to USA Today.

Every morning, Quiroz would wake up to a freshly made pot of coffee made by Luevanos.

“He was our baby,” Quiroz said.

Miranda Mathis, 11

Mathis was among the victims. She was "fun" and "spunky," Leslie Ruiz, a friend of Miranda’s mother, told the Washington Post.

This story will be updated as information becomes available.