Walter was the descendant of Thomas Curson†, a merchant who had traded with Prussia and had served as MP for Lynn in 1357, as chamberlain in 1356-7, 1363-4 and 1376-7, and as mayor in 1383-4.
In 1442 confirmation of Lynn’s charter was obtained ‘by the labour and industry of Walter Curson’ who was then up at Westminster for his second Parliament (this being after an absence of 23 years from the Commons). The previous July he had been questioned in the guildhall with regard to rental arrears of 26s.8d. for two shops in ‘Grass Market’ which he had been leasing from the community since 1438. In the same year the Holy Trinity guild footed a large bill of £36 for repairs to a house once belonging to him in ‘Le Cheker’
