Henry C. Sinyard died in Davison County, near Nashville, Tennessee of disease. He is listed in the Roll of Honor, Volume XXII, page 366 as;
Lynard, Henry, Pvt, 1st Ala Cav, died August 24, 1864, near Nashville. This is a listing of Union soldiers who died in and around Nashville during the war. He is very likely buried in Nashville National Cemetery and classed in a grave marker as Unknown.
At the time of his death the main body of the 1st Alabama Cavalry was stationed at Rome, Georgia. However, there was a large Detachment stationed at Decatur, Alabama at the time. According to his Compiled Service Record, he was admitted to the US Hospital at Decatur sometime prior to May 1864. At that time the 1st Alabama Cavalry was Headquartered at Mooresville, Alabama (from about April 10 to May 1st or 2nd). The equivalent of one Battalion of the Regiment departed east for the Atlanta Campaign on May 2d, 1864. About 650 men were left at Decatur to guard the Memphis and Charleston Railroad and a large detachment remained at Decatur until November 1864. Henry C. Sinyard was left behind in the hospital at Decatur. He was subsequently sent to Nasvhille for treatment of chronic diarrhea at that time a killer disease.
Although Henry C. Sinyard never fought in what was considered a major battle of the war, during the time of (he enlisted on October 17, 1863) his service the Regiment was involved in vital operations in and around Corinth, Mississippi protecting the Memphis and Charleston Railroad. His first action was probably during Spencer's ill-fated Raid toward Jasper, Walker County, Alabama on October 20, 1863-October 26/27, 1863. This was probably the worst showing of the Regiment during the war. Confederate spies and scouts were privy to the route and action of Colonel George E. Spencer's Regiment and Regiment was badly scattered by forces of Colonel Samuel W. Fergusan's Brigage of Cavalry (2nd Alabama Cavalry, 56th Alabama Cavalry, 2nd (Barteau's) Tenneessee Cavalry and the Arkansas Monticello Battery in addition to Major W.D. Morelands Battalion of Alabama Cavalry. The major brunt of the figting took place at Vincent's Cross Roads near Bay Springs, Mississippi.
In November-December 1863 the Regiment was involved in actions along the Memphis and Charleston Railroad in response to Forrest's incursion into western Tennessee to raise his new command. The major fighting of the Regiment in the many skirmishes and engagements was at Jack's Creek, Tennessee on December 24, 1863.
In January 1864 the Regiment was assigned to the garrison at Memphis, Tennessee and was engaged as a part of General Sooy Smith's Expedition toward Meridian, Missisppi, January 5, 1864-February 28, 1864. However, a large portion of Company I was unmounted and was dispatche to Vicksburg and was engaged in the Quartermaster Department in Sherman's Expedition from Vicksburg to Meridian.
The Regiment was assigned the mission of guarding railroad workers near Lake and Hopefield, Arkansas from about March 12, 1864 to March 21, 1864.
On its return to Memphis on March 22nd, the Regiment received orders to embark on the Westmoreland and steam via river to Nashville, Tennesse and then overland to Mooresville, Alabama, arriving in Mooresville about April 10, 1864.
References;
"Compiled Service Records of Volunteer Union Soldiers Who Served in Organizations From the State of Alabama, First Alabama Cavalry."
"The War of the Rebellion, A Compilation of the Official Records of Union and Confederate Armies".
"Roll of Honor, Volume XXII, Nashville National Cemetery."