Maryland's 7th congressional district special election, 1810

A special election was held in Maryland's 7th congressional district to fill a vacancy left by the resignation of John Brown (DR) to accept a position as clerk of the county court of Queen Anne's County. Brown had earlier been re-elected to the 12th Congress, thus, his resignation created vacancies in both the 11th and 12th Congresses. Unusually, a single ballot was used for both vacancies. This was the first of at least three examples of this sort of dual-vacancy being filled with one ballot.