The census records his place of abode on June 1, 1860. He was the sole occupant. Perhaps he was working away from the family. I didn't check the census for Mary by her seof.
J C. McWilliams
Enlisted as a Private
"C" Co. LA 6th Cavalry
J C. McWilliams, 44 year old Farmer, born in Jefferson County, Alabama, enlisted as a Private in Capt. Wm. Harrison's Company G, Balch's Batttalion, Cavalry* April 6, 1862 at Monroe, Louisiana for the term of one year, October 19/21,1863 "lost his papers-seeking transportation to Enterprise, surrendered at New Orleans, La. May 26, 1865, paroled at Natchitoches, La., June 19, 1865, resident of Bossier** Parish, La., his records contain a note from the Adjutant General, War Department to the President, Louisiana Board of Pension Commissioner dated April 17, 1916,
*This company appears to have served as Captain Fuller's Company, Louisiana Cavalry; Company B, Wimberly's (afterwards Webb's Squadron Louisiana Cavalry; Company G, 18th (Balch's) Battalion Tennessee Cavalry; Captain Harrison's Company, 2nd Woodward's Regiment Kentucky Cavalry; and Company C, 6th Regiment Louisiana Cavalry [Compiled Service Records]
**Handwriting very faint, appears to be Bossier
6th Regiment, Louisiana Cavalry
6th Cavalry Regiment was assembled near Minden, Louisiana, in January, 1864. The unit was assigned to the Trans-Mississippi Department and saw light action in Louisiana. Later it operated a courier-line between Camden, Arkansas and Alexandria, Louisiana. In March, 1865, the regiment was patrolling along the west bank of the Mississippi River, then disbanded. Colonel William Harrison was in command.
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1860 United States Federal Census about John C McWilliams
Name: John C McWilliams
Age in 1860: 30
Birth Year: abt 1830
Birthplace: Alabama
Home in 1860: Bossier, Louisiana
Gender: Male
Post Office: Filmone
Value of real estate: View image
Household Members:
Name Age
John C McWilliams 30*
* His occupation looks like "A Stud Horse Keeper"