see Poland Street 10 to 18 & 45 to 48 in London Addresses dataset
John Maynard 18 Poland St ratebooks 1773-7 / St James Chronicle 2.12.1784 Mrs Elizabeth Maynard widow of John Maynard upholder of Poland St died Wed (1.12.1784) / will PCC 16.12.1784 Elizabeth Maynard widow of John Maynard upholder dated 19.10.1764 to be buried with late husband at Chiswick, eldest son John Cartwright Maynard, son William, daus Harriet & Elizabeth Isabella, brother & sister William Walker & his wife Mary / Elizabeth Maynard adult bur 15.1.1784 St James / John Maynard bach = St Geo Han Sq 9.5.1745 Elizabeth Cartwright sp botp by lic Faculty Office, children bapt St James John Cartwright 1746 George 1747 William 1748 Thomas 1750 Harriotte 1751 Elizabeth Isabella 1753 / will London Consistory Court 1770 of John Maynard of St James widow Elizabeth (but this conflicts with date on her will)