Hobart enlisted in "Essex Troop" a New Jersey militia cavalry unit, as a PVT. He was promoted to CPL in May 1909. At that time he was working as a cashier for the Fireman's Insurance Company.
In 1916 New Jersey provided soldiers to respond to the emergency along the Mexican border and CPT Hobart was stationed at Camp Funston, at Douglas, Arizona from June through October 1916 and during this time was promoted to MAJ commanding 1st Squadron, Essex troop having expanded to 3 troops of cavalry. He married Mary Elizabeth James in March 1917 and then moved with unit to Sea Girt in July 1917 in preparation for movement to Camp McClellan near Anniston, Alabama.
After arriving at Camp McClellan, the old 1st Squadron was reorganized as the 104th Military Police Battalion at Camp McClellan and MAJ Brown commanded from September 1917 to April 1918 during which time he was promoted to LTC and served as post Provost Marshall. At this time there was a lot of shuttling about of officer and LTC Brown and he briefly served as commander of the 116th Infantry during June 1918 at Camp McClellan. He shipped out to France with the 116th on 15 June 1918 and once there he was re-assigned as Commander of the 114th Infantry which was composed of New Jersey National Guard units that had been reorganized at Camp McClellan. He led the unit during the Meuse-Argonne offensive in October 1918.
After the armistice on 11 Nov 1918 he was again reassigned this time as Deputy Provost Marshall General of American Expeditionary Force in France and served in this position until February 1919. For his service during the war he was awarded the Distinguished Service Medal.
Returning to the United States he met his infant daughter for the first time. Shortly thereafter he was appointed Assistant Treasurer of Fireman's Insurance Company in April 1919. Hobart with George H. McCarter applied for and received a charter for American Legion in New Jersey on 24 May 1919 and was elected as the first commander of the New Jersey American Legion. This obviously was an extremely busy time for COL Brown and he refused command of 6th New Jersey Infantry in July 1919, not wanting to continue service.
He was then appointed as treasurer of Fireman's Insurance Company and in 1920, with his family, lived in the home of his mother-in-law 1920 on West 79th Street in New York City. However, military service was a continuing interest and in 1926 he was commanding the 302nd Cavalry Regiment, 61st Cavalry Division. Hobart was elected as Vice President and Secretary of Insurance Shares Corporation in September 1927. He continued in this work, living with his extended family in New York City until he was called to active duty with his unit on 13 Apr 1941. He was selected to establish a Women's Army Corps training center at Fort Oglethorpe and was commanding that facility effective 1 Jan 1943. Mary died on 29 Apr 1946. He married Helen Bowden on 14 Oct 1947.
COL Brown retired from military on 29 Jun 1948 as a COL of Cavalry. He and Helen moved to 156 Palmetto Road, Clearwater, Florida. COL Brown died on 2 Jun 1955 in Belleair, Florida and is buried in Arlington National Cemetery in Arlington, Virginia. A granddaughter survives.
Hobart had 2 brothers who also served in the military. John Vincent Brown retired from the United States Air Force as a COL. Perry Terhune Brown retired from the United States Navy as a LtCmdr.
Note: this is published 40-years after his death.