During the North Sea flood of 1953 Ouwerkerk was hit hard : one in six residents died . Many buildings , including a wooden octagonal flour mill , were lost . The breach of the dike at Ouwerkerk was the last one to be closed in the night of 6 to 7 November 1953 . Ouwerkerk was a separate municipality until 1961 , when it was merged with the other villages of the former island of Duiveland , into the municipality of Duiveland . On January 1 1997 Duiveland merged with the five other municipalities into Schouwen-Duiveland
North Sea flood of 1953
North Sea flood of 1953
Ouwerkerk