L. Dukes was a member of Starfleet in the 22nd century.
In January of 2155, Dukes worked in Flight Operations at the Fleet Operations Center on Earth. Dukes' office was located in room 3554. (ENT: "Demons" set artwork)
Dukes' name was seen on directory listings seen on the set of "Demons".
L. Dukes was named after Enterprise transportation tech Larry Dukes.