The road is named after Major Louis Irving Seymour, an American mechanical engineer and consulting engineer of Rand Mines. Seymour was the need for technical skills so raised and was second-in-command of the Railway Pioneer Regiment. He was killed in action at Zand River on 14 June 1900.

Seymour Avenue (plaque on the corner of Jan Smuts), Parktown, Johannesburg
Related Organisation: 
Johannesburg Heritage Foundation (JHF)
Parktown and Westcliff Heritage Trust