Unton came from a minor gentry family, succeeding as a child to property in and around Market Drayton. However, he probably owed his career, such as it was, to Sir Hugh Beeston*, his kinsman through the Chetwode family.
Sometime during 1604 Northampton obtained a royal letter describing Unton as one who attended ‘about one of his right trusty and well-beloved councillors’ and desiring his appointment as the next town clerk of Shrewsbury. However, Shrewsbury’s corporation declared that it was unable to grant the office in reversion, and consequently Unton never held the post.
