Maryland County Resources
From Ancestry.com Wiki
Maryland has twenty-three counties and the city of Baltimore, which is not under county jurisdiction. At the courthouses are recorded transfers of land, estates, and other records. The first column below indicates the map coordinate. In the second column is the name of the county with the mailing address of the county circuit court clerk, where deeds, mortgages, vital records, divorces, naturalizations, and other matters are recorded. In the third column is the date the county was created and the name or names of the parent county or counties. The date the earliest land deed was recorded appears in the fourth column. In the last column is the date when Orphans’ Court records begin, followed by the mailing address of that court’s clerk and the register of wills, if different from the circuit court clerk. While some records are available in the counties, most original and/or microfilm copies of land, estate, vital, and court records have been transferred to the Maryland State Archives. As new county records are created, they will continue to be microfilmed and sent to the state archives. Other county offices not included below may have different mailing addresses.