Did you mean: Theodore Becker
Theodor Becker was a Danish-born German civil engineer and entomologist primarily known for studies on the taxonomy of flies.
He worked with Paul Stein, Mario Bezzi, and Kálmán Kertész on Katalog der Paläarktischen dipteren published in Budapest... Wikipedia
Born: June 23, 1840, Plön, Germany
Died: June 30, 1928 (age 88 years), Legnica, Poland