England & Wales, Prerogative Court of Canterbury Wills, 1384-1858 (ancestry.com) Will of Thomas Pettit or Pettitt, Grocer of London, proved 02 March 1608, mentions "my younger sonne Thomas Pettit"
England & Wales, Prerogative Court of Canterbury Wills, 1384-1858 (ancestry.com) Will of Cicely Cleyton, Widow of London, proved 13 May 1624, mentions my loving daughter Cicely Pettite Widdowe, her two daughters Cicely Pettite, and Elizabeth Pettite, her sonne Thomas Pettite
England & Wales, Prerogative Court of Canterbury Wills, 1384-1858 (ancestry.com) Will of Elizabeth Stockton, Widow of Battersea, Surrey, proved 16 February 1658/59, mentions my very loveing sister Cicilia Pettit widdow, her sonn my cosen [nephew] Thomas Pettit