More may be added to the earlier biography.
During the Easter term of 1425, when Mercham was representing Wallingford in Parliament for the second time, he and two other local men were sued in the court of common pleas by Stephen Morepath for a debt of £30. They were ordered to be attached by the bailiff of the honour of Wallingford and brought to the court the following term. Mercham is described on the plea roll as a husbandman and ‘alias John Chaloner’.
