Theodore was born in Salem County, N.J. in 1832. He was commissioned an officer in Battery B, MD Light Artillery on Sept. 30, 1861, the youngest officer in Snow's Battery. He was promoted to Full 1st Lt. on Jan. 1, 1862. Wounded at Malvern Hill, VA. on July 1, 1862, in the chest & both shins, he went home to Cecil County, MD to recover. He returned to duty & led Battery B at Antietam in the absence of Snow, who was ill. He resigned his commission on Dec. 23, 1862 & returned to Port Deposit, Cecil County, MD where he died in 1902. His wife Margaret E. Carson Vanneman is a distant cousin.

James R Fuller enlisting in Company B of 1st Maryland Volunteer Light Artillery (Alonzo Snow's Battery) on 31 Mar 1864 and mustered out 30 Jun 1864.

He previously served as a Private in the 124th Pennsylvania Volunteers Infantry, Company C, enlisting on 11 Aug 1862 and mustered out with company on 17 May 1863.

WIlliam Fuller enlisted on 29 Mar 1864, and mustered out on 30 June 1864.

He previously served as a Private in the 122nd Pennsylvania Volunteers Infantry, Company B, enlisting on August 11, 1862 and mustered out with Company, May 15, 1863 in Harrisburg, PA after the unit served as an escort to General Amiel Whipple's funeral in Washington DC.
And as a Private in the 20th PA Cavalry(181st Reg) Company I, (6 Months Service) enlisted on June 24, 1863 and mustered out with company on 6 Jan 1864.