I was unable to find either William A. J. Durvin or John Franklin Shepherd in the Confederate Citizens File.

I did come across these names in the Federal Census

1860 Federal Census
Northern District Louisa County, Va., Fredericks Hall PO
enumerated June 29, 1866

William A. Durvin, age 23/25
Mary S. Durvin, age 26
Georgia E. Durvin, 4 F
Mary E. Durvin, 2 F

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1860 United States Federal Census about William A Durrin
Name: William A Durrin
[William A Durvin]
Age in 1860: 23
Birth Year: abt 1837
Birthplace: Virginia
Home in 1860: Northern District, Louisa, Virginia
Gender: Male
Post Office: Fredericks Hall
Household Members:
Name Age
William A Durrin 23
Mary L Durrin 26
Georgia E Durrin 4
Mary E Durrin 2

........

1880 Census listed as a Farmer

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1860 United States Federal Census about John F Shepherd
Name: John F Shepherd Salesman
Age in 1860: 32
Birth Year: abt 1828
Birthplace: Virginia
Home in 1860: St Annes Parish, Albemarle, Virginia
Gender: Male
Post Office: Charlottesville
Household Members:
Name Age
John F Shepherd 32
Lucy W Shepherd 27
Clarence Shepherd 1
Laura Webb 10