The LVA does not list a Free Negro REgister for Caroline County as part of their records, so you might want to call the clerk and see if one still exists in the County. You might also want to check the County Court Order books, available on microfilm and see what information is listed there, many counties kept records on Free Blacks in the Order Books.

There does exist a census of the Black population taken in 1865 under the direction of the Freedmen's Bureau. They are part of Record Group 105, orignial is located at the National ARchives in DC, they are part of the series of records that are being filmed. Not sure if available yet.

I did transcribe this record. It is kinda like a Co-hab List and census combined. Unfortunately it does not list name of last owner, as many do. There are Johnson's, Rollings, 1 Pitts and 1 Murry listed:

Ormstead Scott age 37 born Stafford
father - Ormstead Mother - Matilda
married to
Marsha MURRAY age 32 born Louisa
father - Blank mother - Holiday
1 child (together) - George
1 child by Fanny - Mary

Ben Hamilton age 44 born King George
father - Ben Mother - Peggy
Virginia Pearce age 29 born King George
father - Wallace mother - Betsy

No children (together)
2 Children by 1st wife LUCY PITTS - Mary S & Margaret

Number of Johnsons and Rollins were you looking for anyone in particular.

Selma

For the other researcher I didn't see the MONT surname listed but there were 4 MONTAGUE: Betty, Garret, Matilda and Randal.

Selma