9th Regiment, Virginia Cavalry (Johnson's)
9th Cavalry Regiment was formed in January, 1862, using the 1st Battalion Virginia Cavalry as its nucleus. Its companies were from the counties of Stafford, Caroline, Westmoreland, Lancaster, Essex, Spotsylvania, Lunenburg, King William, King George, and Richmond. The unit served in W.H.F. Lee's, Chambliss', and Beale's Brigade, Army of Northern Virginia. It fought in the Seven Days' Battles and the conflicts at Gainesville, Second Manassas, Sharpsburg, Fredericksburg, Dumfries, Rapidan Station, Brandy Station, Upperville, Hanover, Gettysburg, Williamsport, Funkstown, and Culpeper Court House. The 9th went on to fight at Bristoe, Mine Run, The Wilderness, and Todd's Tavern. Later it skirmished around Richmond and Petersburg, then was active in the Appomattox operations. This unit reported 32 casualties at Upperville, lost four percent of the 490 engaged at Gettysburg, and had 22 disabled at Williamsport. It surrendered 1 officer and 26 men. The field officers were Colonels Richard L.T. Beale, John E. Johnson, William H.F. Lee, and Thomas Waller; Lieutenant Colonel Meriwether Lewis; and Major Samuel A. Swann.

The one J.W.Garrison I can find in 1860 was age 15 and is listed as J.W.T. Garrison, 15, son of Austin Garrison, age 46, and his wife, S.J. Garrison, age 33, living in Fredericksville Parish, Albemarle County, Virginia [near Charlottesville, virginia] living with his brother, A.E.D. Garrison, age 13; brother, T.S.B. Garrison, age 10; sister S.C.W. Garrison, age 9; brother, R.G.G. Garrison, age 7; brother, F.M. Garrison, age 5; brother, S.A. Garrison, age 3; and J.W. Taylor, age 25, a day laborer.

But I find no connection with the 9th Virginia Cavalry. Two names that come close, probably the same person, are John W. Gallahan or John W. Gollahan/Gollahorn and a Thomas of those spellings as well.

1910 United States Federal Census
Name: J W Garrison
Age in 1910: 65
Estimated birth year: abt 1845
Birthplace: Virginia
Relation to Head of House: Head
Father's Birth Place: Virginia
Mother's Birth Place: Virginia
Spouse's name: Loula
Home in 1910: White Hall, Albemarle, Virginia
Marital Status: Married
Race: White
Gender: Male
Household Members: Name Age
J W Garrison 65 farmer b. VA, parents b. VA
Loula Garrison 55 wife W F b. VA, parents b. VA mother of 13 children, 10 still living
Tennis Garrison 17 son W M b. VA farm laborer
Florance Garrison 13 daughter W F b. VA
Russell Garrison 11 son W M b. VA
Andy Garrison 9 son W M b. VA
Melvin Garrison 7 son W M b. VA

Virginia 1910 Census Miracode Index
about J W Garrison
Name: J W Garrison
Birthplace: Virginia
State: VA
Age: 65
Color: W
Enumeration District: 0015
Visit: 0143
County: Albemarle
Relation: Head of Household
Other Residents: Relation Name Age Birth Place
Wife Loula 55 Virginia
Son Temus 17 Virginia
Daughter Florence 13 Virginia
Son Russell 11 Virginia
Son Andy 09 Virginia
Son Melvin 07 Virginia

Can you tell me more about what your service records say.

JR