1. Plan of Norwood Farm by Charles Bidwell, January 1876. Scale: 8 chains to an inch. Shows Great Northern, but not Great Eastern line. Annotation of area drained in 1876-77.
2. Plan by Bidwell of area drained in Dec. 1873. Scale: 12 chains to an inch.
3. Plan by Bidwell of area drained in Dec. 1874. Scale: 12 chains to an inch.
4. Notes by R. T. Caldwell of acreage (including purchases of 1866, 1870 and 1873) Tithe Rent Charge, Land Tax, Middle Level Drainage Tax and District Tax, 1879.