A church built in 1868-69, by Ewan Christian in an Early English style in red brick with stone bands and a slate roof. it contains stained glass by O'Connor and Taylor of London, depicting Christ and the four evangelists. The original Gothic choir stalls and lectern survive in the chancel. At the west end there is a carved round stone font with floral encaustic tiles in the base. The two stained glass windows in the west end depict St Mary and The Reaper. The parish of Holbeach Marsh was created to serve the farmers residing in the marshlands outside Holbeach. It was carved out of the north part of the old parish of Holbeach All Saints. As the size of the new parish was 9,240 acres, it was decided in May 1867 to build two churches: St Mark's to the west, and a smaller chapel of ease, St Matthew's, three miles to the east. Both churches would be served by one clergyman and given an annual endowment by the Ecclesiastical Commissioners. The foundation stone of St Mark's Church was laid on 19 July 1868, and the church was consecrated on 6 January 1869 by the Bishop of Lincoln. The total cost of building and furnishing the church was £1,333. The half-acre site was given by the Crown, together with one acre for the vicarage. The architect was Ewan Christian and the builder was Charles Bennett of Lynn. The clay for the bricks came from one of the Duke of Somerset's farms in the parish. For the full description and the legal address of this listed building please refer to the appropriate List of Buildings of Special Architectural or Historic Interest.{1}