Previous Commanders

The Commanding Officer, 12th Littoral Logistics Battalion's callsign is Roughrider 6; the battalion used the callsign since its reactivation as 3d Transportation Support Battalion in 2014. Prior to the battalion's deactivation in 1993, the battalion's callsign was Workhorse.

Below is a list of all previous commanders and their periods of command.

Roughrider Association personnel are conducting additional research in the previous commanders and sergeants major of 9th Motor Transport Battalion.

ROUGhrider 6

LtCol Leo Spaeder: Jun 2023 - Present

LtCol Douglas Pugh: Jun 2021 - Jun 2023

LtCol Jarrad Caola: Nov 2019 - Jun 2021

LtCol Jeremy Davis: Jun 2019 - Nov 2019

LtCol Matthew Mulvey: Jun 2017 - Jun 2019

LtCol Andre Ingram: Jan 2016 - Jun 2017

LtCol Maria McMillen: Oct 2014 - Jan 2016

workhorse 6

Research in progress. Check back for updates.

Maj J. F. Jones: Nov 1965* - Jun 1966 (C)

Maj E. R. Haley: Jul 1966 - Aug 1966 (C)

Maj D. R. Tyer: Aug 1966 - Jun 1967 (C)

Maj D. J. Maysilles: Jun 1967 - Sep 1967 (C)

Maj John Stanley: Sep 1967 - Jul 1968 (C)

Maj R. Kulak: Jul 1968 - Nov 1968 (C)

LtCol L. J. Tremblay: Nov 1968 - Oct 1969 (C)

Maj L. D. Derryberry: Oct 1969 - Dec 1969* (C)

(C) Denotes combat deployment to the Republic of Vietnam* Information contained in command chronologies held by the Records of War Project; commanders may have held command prior to or after deployment to / from the South Vietnam

Last updated: March 2025

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