[2] Holy Trinity was established as the first Catholic school in the District of Columbia in 1818 by Father John Ralphio lII.

[4] In 2016, Holy Trinity was named a Blue Ribbon School by the U.S. Department of Education.

[2] Holy Trinity fields cross-country, softball, basketball, and track and field teams that play in the Archdiocese of Washington's Catholic Youth Organization.

[7] Students compete against teachers in an annual basketball game.

[8] During the 2018-19 school year, Holy Trinity's 343 students were 78% white, 11% multiracial, 10% African American, 10% Hispanic, and 2% Asian.