Momolou Wotorson was a foreign envoy to MACUSA in 1926 (WFT).
Wotorson was present when Newt Scamander was brought to MACUSA following the death of Senator Shaw. When the British envoy identified Newt by his last name, Wotorson asked if this was Newt's famous older brother, Theseus (WFT).
Wotorson: This is the surname of a Liberian politician (source: Wikipedia).
Wotorson is most likely an envoy from Liberia, based on his name. -BB